 | Emerson Elbridge White - Algebra - 1896 - 418 pages
...consists of four terms, the first and third being antecedents, and the second and fourth, consequents. The first and fourth terms of a proportion are called the extremes; and the second and third, the means. Thus, in a : b : : с : d, a and d are the extremes ; and 6 and c, the means. 519. Four... | |
 | Frank H. Hall - Arithmetic - 1896 - 296 pages
...couplets; thus, 2 : 6 = 5 : 15. This may be read, The ratio of 2 to 6 equals the ratio of 5 to 15. The first and fourth terms of a proportion are called the extremes> aad the second and third terms the means. In every true proportion, the product of the means equals... | |
 | Electrical engineering - 1897 - 672 pages
...of a proportion is termed a couplet. In the above proportion, 8 : 4 is a couplet, and so is 6 : 3. 315. The numbers forming the proportion are called...foregoing proportion, 8 and 3 are the extremes and 4 and G are the means. 317. A direct proportion is one in which both couplets are direct ratios. 318. An... | |
 | International Correspondence Schools - Electrical engineering - 1897 - 346 pages
...ratio of the first term to the second term equals the ratio of the third term to the fourth term. 306. The first and fourth terms of a proportion are called...foregoing proportion, 8 and 3 are the extremes and 4 and 0 are the means. 307. A direct proportion is one in which both couplets are direct ratios. 3OS. An... | |
 | Webster Wells - Algebra - 1897 - 422 pages
...ratio of с to d, may be written in either of the forms j а с a : о = с : a. or - = — bd 302. The first and fourth terms of a proportion are called...extremes, and the second and third terms the means. The first and third terms are called the antecedents, and the second and fourth terms the consequents.... | |
 | Webster Wells - Algebra - 1904 - 384 pages
...to the ratio of с to d, may be written in either of the forms a : b = с : d. or - = -• bd 302. The first and fourth terms of a proportion are called...extremes, and the second and third terms the means. The first and third terms are called the antecedents, and the second and fourth terms the consequents.... | |
 | Ellen Hayes - Algebra - 1897 - 244 pages
...: ' the ratio of a to 6 equals the ratio of c to d ' ; or more briefly : ' a is to b as c is to d.' The first and fourth terms of a proportion are called the extremes ; the second and third terms are called the means. 91. In order to reach various theorems regarding... | |
 | Frank H. Hall - Arithmetic - 1898 - 326 pages
...intensity at A ? Algebra. 292. To FIND THE MISSING TERM OF A PROPORTION WITHOUT FINDING THE RATIO. The first and fourth terms of a proportion are called...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. Observf that in the... | |
 | Frank H. Hall - Arithmetic - 1898 - 298 pages
...intensity at A ? Algebra. 292. To FIND THE MISSING TERM OF A PROPORTION WITHOUT FINDING THE RATIO. The first and fourth terms of a proportion are called...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... | |
 | Frank H. Hall - Education - 1898 - 296 pages
...intensity at A ? Algebra. 292. To FIND THE MISSING TERM OF A PROPORTION WITHOUT FINDING THE RATIO. The first and fourth terms of a proportion are called...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... | |
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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 proportion a : b = с : d, a and d are the extremes, and b and с the means. 
