What should come in place of the question mark '?' in the following number series?
184, 92, 138, (?), 1207.5, 5433.75
1
325
2
345
3
335
4
315
5
330
What should come in place of the question mark '?' in the following number series?
184, 92, 138, (?), 1207.5, 5433.75