Question

19, 38, ?, 228, 684, 1368

Answer 1

19*2= 38, ?* 2= 228 , 684*2= 1368
? = 114
hope it helps

Answer 2

Answer:

The missing number in the series is 114.

Step-by-step explanation:

Given the number series 19, 38, ?, 228, 684, 1368

If we see the numbers, the first number is multiplies 2 to get second number.

Second is multiplied with 3 to get third number.

And then again the number is multiplied with 2 to get the next number.

The logic is first number is multiplied with 2 to get the next number and then multiplied with 3 to get the next, and so on.

$19~~~~~~ 38~~~~~~~~ ?~~~~~~~~~ 228~~~~~684~~~~~~ 1368\\\underbrace {~~~~~~~~~~}\underbrace {~~~~~~~~~~}\underbrace {~~~~~~~~~~}\underbrace {~~~~~~~~~~}\underbrace {~~~~~~~~~~}\\~~~\times2~~~~~\times3~~~~~~\times2~~~~~~\times3~~~~~\times2$

Therefore, following the same logic, $38\times 3=114$ and $114\times 2=228$

Hence, the missing number is 114.