Question

What is the fourth proportional to 336, 288 and 161?
336, 288 और 161 का चतुथानुपाितक
ा
है?
Options:
1) 184
2) 115
3) 138
4) 134

Answer 1

Answer:

138

Step-by-step explanation:

What is the fourth proportional to 336, 288 and 161?

336, 288 और 161 का चतुथानुपाितक  है?

Options:

1) 184

2) 115

3) 138

4) 134

336 : 288 :: 161 :  ?

let say ? = X

=> 336 : 288 :: 161 : X

as we know that a : b :: c : d

=> ad = bc

hence

336 X  = 288 * 161

=> 12 * 28 X  = 12 * 24 * 7 * 23

Cancelling 12 from both sides

=> 7 * 4 X = 6 * 4 * 7 * 23

Cancelling 7 * 4 from both sides

=> X = 6 * 23

=> X = 138