 In the proportion - = -, a, b, c, and d are called the terms bd of the proportion. The first and last terms are called the extremes and the second and third terms are called the means.  First Course in Algebra - Page 231by William Benjamin Fite - 1913 - 334 pagesFull view - About this book
 | Joseph Ray - Algebra - 1857 - 408 pages
...ratios to form a proportion. ART. 36<1. Each of the four quantities in a proportion is called a term. The first and last terms are called the extremes ; and the second and third terms, the means. . The terms of a proportion may be either monomials or polynomials. ART. 205. Of four quant'ties... | |
 | Daniel Adams - Arithmetic - 1861 - 452 pages
...first and second terms make up the first couplet, and the third and fourth terms, the second couple^. The first and last terms are called the extremes, and the second and third, the means. In every proportion, the product of the extremes is equal to the product of the means; hence... | |
 | C. Davies - 1867 - 342 pages
...: D; and read, A is to B, as C to DThe quantities which are compared together are called the terms of the proportion- The first and last terms are called the extremes, and the second and third terms, the meansThus, A and D are the extremes, and B and C the means3 Of four propoitional quantities, the... | |
 | Charles Davies - Geometry - 1870 - 392 pages
...D; and read, Л is to B, as G to D. The quantities which are compared together are called the terms of the proportion. The first and last terms are called the extremes, and the second and third terms, the means. Thus, A and D are the extremes, and В and G the means. 3. Of four proportional quantities,... | |
 | Charles Austin Hobbs - Arithmetic - 1889 - 362 pages
...is read the ratio of 4 to 6 equals the ratio of 10 to 15. The first and fourth terms of a proportion are called the extremes, and the second and third terms are called the means. Three numbers are said to be in proportion when the ratio of the first to the second equals the ratio... | |
 | William Seneca Sutton - 1896 - 342 pages
...four is to six as eight is to twelve, or, the ratio of 4 to 6 equals the ratio of 8 to 12. 184. In a proportion the first and last terms are called the Extremes, and the intermediate terms are called the Means. In the proportion 4 : 6 : : 8 : 12 or 4 ч- 6 = 8 ч- 12,... | |
 | William James Milne - Geometry, Modern - 1899 - 258 pages
...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 : 6 = c : d, a and d are the extremes, and 6 and c are the means.... | |
 | Charles Austin Hobbs - Geometry, Plane - 1899 - 266 pages
...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 the means of a proportion... | |
 | William James Milne - Geometry - 1899 - 398 pages
...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 : 6 = c : d, a and d are the extremes, and 6 and c are the means.... | |
 | Oscar Lynn Kelso - Arithmetic - 1903 - 308 pages
...use it, it is much better to use the equality sign ( = ). The first and fourth terms of a proportion are called the extremes, and the second and third terms are called the means. If the two ratios of a proportion are simple, the proportion is simple. If either or both ratios of... | |
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