Finding the Fourth Proportional to 438,438.10, 657,657.15 and 251,295.70
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Solution
The fourth proportional to 438,438.10, 657,657.15 and 251,295.70 is: 376,943.55
Step by Step Solution
- Step 1: Write the proportion equation
438,438.10 : 657,657.15 = 251,295.70 : x - Step 2: Convert to fraction form
438,438.10/657,657.15 = 251,295.70/x - Step 3: Cross multiply
438,438.10x = 657,657.15 × 251,295.70 - Step 4: Simplify right side
438,438.10x = 165,266,413,869.26 - Step 5: Solve for x
x = 165,266,413,869.26/438,438.10 - Step 6: Final answer
x = 376,943.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.