calc: index column A with column B

I want to find the row in column A that corresponds to the row of a value in column B.

eg.

row    A   B

1      10   220000

2      20   150000

3      30   3000

4      40   10

=some_function('A',minimum_function(B));

where minimum_function(B) returns 4 and some_function('A',4) returns the value in column A at row 4.

Is this what you mean:

=INDIRECT("$A"&MATCH(MIN(B:B);B:B;0))

I think you meant to write this:

=INDIRECT("$A"&MATCH(MIN(B*1*:B*4*);B*1*:B*4*;0))

Chuck

Great, thanks.