Hi Vijay,
Few points:
1) As per the set of books configuration : Currency Conversion Profile is : Corrency Conv. - Ask rate.
-> As per the Screenshot of the activity : Currency conversion profile, You have selected Currency Conv. Bid/Mid/Ask Rates.
2) Also from your screenshots, I can see that you have multiple Exchange rate types
-> Can you also check for the relevant Exchange rate type (Maintained for the profile and busines transactions in currency conversion profile activity) in Edit exchange rate or Exchange rate history screen.
I am assuming that screenshot of the exchange rate is taken from the edit exchange rate screen and may be referring to Default exchange rate type.
Regards,
Harshal