 | Shelton Palmer Sanford - Algebra - 1879 - 348 pages
...terms, therefore, are antecedent's, and the second and fourth are consequents. 243. The first and last terms of a proportion are called the extremes, and...the second and third terms the means. Thus, in the proportion a : b : : c : d, a and d are the extremes, and b and c are the means ; a and b together... | |
 | Simon Newcomb - Geometry - 1881 - 418 pages
...p , — 2 — . — 2 — and Q contains it three times, then Q i , - \ ! A : B :: P : Q. 342. Def. The first and fourth terms of a proportion are called the extremes; the second and third, the means. EXAMPLE. In the last proportion A and Q are the extremes, B and P... | |
 | Silas Sadler Packard, Byron Horton - Business mathematics - 1882 - 224 pages
...yd. : 3 yd. : : $24 : $12. The expression is also read, " Qyd. is to 3 yd. as $24 is to $12." 384. The first and fourth terms of a proportion are called the extremes ; and the second and third, the means. 385. PRINCIPLES. — 1. Tlie product of the means is equal to the product of the extremes.... | |
 | Edwin Pliny Seaver, George Augustus Walton - Algebra - 1881 - 304 pages
...written ? Compare the ratio 3:2 with the ratio 15:10. Write the proportion. 189. The first and last terms of a proportion are called the extremes, and the second and third are called the means. What are the extremes and what the means in the proportion A:B=C:Dt 190. If we... | |
 | Simon Newcomb - Algebra - 1882 - 302 pages
...equation may be read, " As a is to b, so is p to q," whenever that expression is the clearer. Def. The first and fourth terms of a proportion are called the extremes; the second and third are called the means. Theorems of Proportion. 181. THEOREM I. In a proportion... | |
 | Webster Wells - 1885 - 368 pages
...be written in either of the forms : ï -, a с * я a:b = c:d, - = -, or a : b : : с : a. bd 290. The first and fourth terms of a proportion are called...the second and third terms the means. Thus, in the proportion a:b = c:d, a and d are the extremes, and b and с the means. 291. In a proportion in which... | |
 | Webster Wells - Algebra - 1885 - 370 pages
...written in either of the forms : / j а с , , a : b = с : а, - = -, or a : b : : с : a. ba 290. The first and fourth terms of a proportion are called...the second and third terms the means. Thus, in the • proportion a : b = с : d, a and d are the extremes, and b and с the means. 291. In a proportion... | |
 | Webster Wells - Algebra - 1885 - 372 pages
...ma\' be written in either of the forms : а с a:b — с: d, — = — , or a: b : : c: d. bd 290. The first and fourth terms of a proportion are called...the second and third terms the means. Thus, in the proportion a : b = с : d, a and d are the extremes, and b and с the means. 291. In a proportion in... | |
 | Andrew Jackson Rickoff - Arithmetic - 1886 - 688 pages
...first and second terms make the first couplet; the third and fourth terms, the second couplet. 352. The first and fourth terms of a proportion are called the extremes; the second and third are called the means. EXERCISES IN FINDING RATIOS Find the ratios of the following... | |
 | Webster Wells - Algebra - 1889 - 584 pages
...second term the consequent. Thus in the ratio a : b, a is the antecedent, and .b is the consequent. The first and fourth terms of a proportion are called...the second and third terms the means. Thus in the proportion a : b = с : d, a and d are the extremes, and b and с the means. 307. In a proportion in... | |
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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. 
