Finding the Fourth Proportional to 138,646.08, 207,960.92 and 38,804.07
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Solution
The fourth proportional to 138,646.08, 207,960.92 and 38,804.07 is: 58,203.80
Step by Step Solution
- Step 1: Write the proportion equation
138,646.08 : 207,960.92 = 38,804.07 : x - Step 2: Convert to fraction form
138,646.08/207,960.92 = 38,804.07/x - Step 3: Cross multiply
138,646.08x = 207,960.92 × 38,804.07 - Step 4: Simplify right side
138,646.08x = 8,069,729,268.59 - Step 5: Solve for x
x = 8,069,729,268.59/138,646.08 - Step 6: Final answer
x = 58,203.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.