...ratios is said to form a proportion, or in other words four quantities are said to be in proportion when the ratio of the first to the second is equal to the ratio of the third to the fourth. Thus 5 ft. $25 2 ft. $10 is a proportion. This is often written 5 ft. : 2 ft....

...Find the numbers. Proportion 171. Definitions. Four numbers or quantities are said to be in proportion when the ratio of the first to the second is equal to the ratio of the third to the fourth. Remark. In what follows we shall use the expression, the ratio of one number to...

...21° to the supplement of the same angle. Find the angle. 20. Find three consecutive numbers such that the ratio of the first to the second is equal to the ratio of 5 times the third to 5 times the first plus 16. Variation 101 Direct Proportion: If a train travels...

...x-2 5x-7 l0x+11 12. 3x-5 6x+ 7 3x DIRECT VARIATION 91 20. Find three consecutive numbers such that the ratio of the first to the second is equal to the ratio of 5 times the third to 5 times the first plus 16. Variation 101 Direct Proportion: If a train travels...

...ж = y, or г = ж + y. У PROPORTION. 348. DEFINITION. Four quantities are said to be in proportion when the ratio of the first to the second is equal to the ratio of the third to the fourth. The four quantities are called proportionals, or the terms of the proportion....

...o:f=f:5. AK IK 6.8:11=24:1. 10. — = £?• 16. a : 4 = 4. : 12. TO 36 39. Proportional lines. Four lines are said to be proportional when the ratio of the first to the second equals the ratio of the third to the fourth. Draw a triangle ABC with AB = & in., BC = 4 in., and AC=3...

...diagonal and side of a square, we can easily prove by geometry that the ratio of the first remainder to the second is equal to the ratio of the second to the third, and so on; it is therefore impossible that the operation should come to an end. This geometrical fact...

...expressed by division, which one quantity bears to another. Four quantities are said to be in proportion when the ratio of the first to the second is equal to the ratio of the third to the fourth. A proportion may be written in either of two ways; thus if the ratio of a to &...

...4cd c2+d2 Continued Proportion Quantities of the same kinds are said to be in continued proportion when the ratio of the first to the second is equal to the ratio of the second to the third and is equal to the ratio of the third to the fourth, and so on. Thus, a, b, c, d, ... are in continued...

...started. В : PROPORTION 1.4 Definition Four quantities are said to be in proportion or proportional if the ratio of the first to the second is equal to the ratio of the third to the fourth. Thus a, b, c, d are in the proportion or proportional if the ratio of 'a to b...