 | John William Hopkins, Patrick Healy Underwood - Algebra - 1912 - 362 pages
...with 3 as 6 is compared with 9. The above proportion may also be written f = f . 107. In a proportion the first and fourth terms are called the extremes and the second and third terms are called the means of the proportion. 108. Two quantities are directly proportional, or vary directly,... | |
 | Earle Bertram Norris, Kenneth Gardner Smith, Ralph Thurman Craigo - Arithmetic - 1912 - 210 pages
...working practical examples, where we do not know one term of the proportion, but know the other three. The first and fourth terms are called the Extremes, and the second and third are called the Means. Then we have the rule: " The product of the means is equal to the product of... | |
 | Earle Bertram Norris, Kenneth Gardner Smith, Ralph Thurman Craigo - Arithmetic - 1912 - 210 pages
...working practical examples, where we do not know one term of the proportion, but know the other three. The first and fourth terms are called the Extremes, and the second and third are called the Means. Then we have the rule: " The product of the means is equal to the product of... | |
 | George Wentworth, David Eugene Smith - Algebra - 1913 - 478 pages
...d. In older works it is often written a : b : : с : d. 161. Terms of a Proportion. In a proportion the first and fourth terms are called the extremes, and the second and third terms the means. In the proportion a : Ь = с : d the extremes are a and d, and the means are b and c. In the same... | |
 | George Wentworth - 1913 - 316 pages
...c:d. In older works it is often written a : 6 : : с : d. 230. Terms of a Proportion. In a proportion the first and fourth terms are called the extremes, and the second and third terms the means. In the proportion a : b = с : d the extremes are a and d, and the means are 6 and c. In the same proportion... | |
 | Joseph Victor Collins - Algebra - 1913 - 362 pages
...is called the antecedent and the last term the consequent. The first and last terms of a proportion are called the extremes, and the second and third terms the means. If the second and third terms of a proportion are the same quantity, this quantity is called a mean... | |
 | Henry Lewis Rietz, Arthur Robert Crathorne, Edson Homer Taylor - Algebra - 1915 - 298 pages
...notation the proportion may be read "a is to b as с is to d." The first and fourth terms of a proportion are called the extremes, and the second and third terms the means. Thus, in the proportion, a _ с a and d are the extremes and b and с the means. Since a proportion... | |
 | Henry Lewis Rietz, Arthur Robert Crathorne, Edson Homer Taylor - Algebra - 1915 - 302 pages
...notation the proportion may be read "a is to b as с is to d." The first and fourth terms of a proportion are called the extremes, and the second and third terms the means. Thus, in the proportion, a с a and d are the extremes and 6 and с the means. Since a proportion is... | |
 | Webster Wells, Walter Wilson Hart - Geometry, Plane - 1915 - 330 pages
...that 1 bears to 3 the same relation that 5 bears to 15. The first and fourth terms of a proportion are called the Extremes, and the second and third terms, the Means. In the proportion a : b = c : d, a and d are the extremes and 6 and c are the means ; 0 and c are the... | |
 | Webster Wells, Walter Wilson Hart - Geometry - 1916 - 490 pages
...that 1 bears to 3 the same relation that 5 bears to 15. The first and fourth terms of a proportion are called the Extremes, and the second and third terms, the Means. In the proportion a : 6 = c : d, a and d are the extremes and 6 and c are the means ; a and c are the... | |
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The first and fourth terms of a proportion are called the extremes, and the second and third terms, the means. Thus, in the foregoing proportion, 8 and 3 are the extremes and 4 and 6 are the means. 
