 | William James Milne - Geometry - 1899 - 404 pages
...a : b = c : d, a and c are the antecedents, and 6 and d are the consequents of the proportion. 265. The first and fourth terms of a proportion are called the Extremes and the second and third terms are called the Means of the proportion. In the proportion a : b = c : d, a and d are the extremes,... | |
 | Charles Austin Hobbs - Geometry, Plane - 1899 - 266 pages
...bd They may be read, "the ratio of a to b equals the ratio of c to d," or " a is to b as c is to d." The first and fourth terms of a proportion are called the extremes, and the second and third terms are called the means. The fourth term is said to be a fourth proportional to the other three. When... | |
 | Frank Castle - Mathematics - 1899 - 424 pages
...written as 6 : 8 : : 15 : 20, and this should be read as 6 is to 8 as 15 is to 20. The first and last terms of a proportion are called the extremes, and the second and third terms the means ; thus 6 and 20 are the extremes, and 8 and 15 are the means in the above proportion. When four quantities... | |
 | Frank H. Hall - Arithmetic - 1899 - 462 pages
...TERM OF A PROPORTION WITHOUT FINDING THE RATIO. The first and fourth terms of a proportion are calleM the extremes, and the second and third terms, the means; thus, in the proportion 12:6 = 8:4, 12 and 4 are the extremes and 6 and 8 are the means. Observe that in the following... | |
 | Analytical chemistry - 1900 - 532 pages
...ratio of the first term to the second term equals the ratio of the third term to the fourth term. 135. The first and fourth terms of a proportion are called...and 3 are the extremes and 4 and 6 are the means. 136. A direct proportion is one in which both couplets are direct ratios. 137. An Inverse proportion... | |
 | International Correspondence Schools - Coal mines and mining - 1900 - 720 pages
...ratio of the first term to the second term equals the ratio of the third term to the fourth term. 3 IB. The first and fourth terms of a proportion are called...and 3 are the extremes and 4 and 6 are the means. 317. A direct proportion is one in which both couplets are direct ratios. 318. An inverse proportion... | |
 | 1900 - 728 pages
...ratio of the first term to the second term equals the ratio of the third term to the fourth term. 316. The first and fourth terms of a proportion are called...foregoing proportion, 8 and 3 are the extremes and í and 6 are the means. 317. A direct proportion is one in which both couplets are direct ratios. 31... | |
 | International Correspondence Schools - Electric lighting - 1901 - 630 pages
...ratio of the first term to the second term equals the ratio of the third term to the fourth term. 51. The first and fourth terms of a proportion are called...foregoing proportion, 8 and 3 are the extremes and 4 and G are the means. 52. A direct proportion is one in which both couplets are direct ratios. 53. An Inverse... | |
 | Samuel Wesley Baird - Arithmetic - 1901 - 168 pages
...proportion is often indicated by writing a double colon between the ratios compared. Thus, 12 : 4 : : 9 : 3. The first and fourth terms of a proportion are called the Extremes, and the second and third the Means. PRINCIPLES. — The product of the extremes equals the product of the means. Either extreme... | |
 | William James Milne - Algebra - 1901 - 476 pages
...form a proportion are called the Antecedents and Consequents, respectively, of the proportion. 323. The first and fourth terms of a proportion are called the Extremes of the proportion. In the proportion a : b = с : d, the extremes are o and d. 324. The second and... | |
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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. 
