Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number.

14 : 98 :: 18 : 162 :: 26 : ?

338

Pattern followed here is :

2nd number = 1st number × ( 1st number ÷ 2 )

We have ,

14 : 98

2nd number = 14 × ( 14 ÷ 2 )

= 14 × 7 = 98

&  18 : 162

2nd number = 18 × ( 18 ÷ 2 )

= 18 × 9 = 162

Similarly ,

26 : ?

2nd number = 26 × ( 26 ÷ 2 )

= 26 × 13 = 338

338 , is correct answer .