Finding the Fourth Proportional to 378,125.64, 521,824.50 and 208,370.70
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Solution
The fourth proportional to 378,125.64, 521,824.50 and 208,370.70 is: 287,557.69
Step by Step Solution
- Step 1: Write the proportion equation
378,125.64 : 521,824.50 = 208,370.70 : x - Step 2: Convert to fraction form
378,125.64/521,824.50 = 208,370.70/x - Step 3: Cross multiply
378,125.64x = 521,824.50 × 208,370.70 - Step 4: Simplify right side
378,125.64x = 108,732,936,342.15 - Step 5: Solve for x
x = 108,732,936,342.15/378,125.64 - Step 6: Final answer
x = 287,557.69
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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.