Finding the Fourth Proportional to 438,569.17, 657,877.08 and 139,073.38
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Solution
The fourth proportional to 438,569.17, 657,877.08 and 139,073.38 is: 208,617.47
Step by Step Solution
- Step 1: Write the proportion equation
438,569.17 : 657,877.08 = 139,073.38 : x - Step 2: Convert to fraction form
438,569.17/657,877.08 = 139,073.38/x - Step 3: Cross multiply
438,569.17x = 657,877.08 × 139,073.38 - Step 4: Simplify right side
438,569.17x = 91,493,189,140.13 - Step 5: Solve for x
x = 91,493,189,140.13/438,569.17 - Step 6: Final answer
x = 208,617.47
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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.