Finding the Fourth Proportional to 378,508.68, 522,342.47 and 206,427.02
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Solution
The fourth proportional to 378,508.68, 522,342.47 and 206,427.02 is: 284,869.55
Step by Step Solution
- Step 1: Write the proportion equation
378,508.68 : 522,342.47 = 206,427.02 : x - Step 2: Convert to fraction form
378,508.68/522,342.47 = 206,427.02/x - Step 3: Cross multiply
378,508.68x = 522,342.47 × 206,427.02 - Step 4: Simplify right side
378,508.68x = 107,825,597,405.90 - Step 5: Solve for x
x = 107,825,597,405.90/378,508.68 - Step 6: Final answer
x = 284,869.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.