Finding the Fourth Proportional to 378,337.79, 522,110.19 and 208,577.99
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Solution
The fourth proportional to 378,337.79, 522,110.19 and 208,577.99 is: 287,839.85
Step by Step Solution
- Step 1: Write the proportion equation
378,337.79 : 522,110.19 = 208,577.99 : x - Step 2: Convert to fraction form
378,337.79/522,110.19 = 208,577.99/x - Step 3: Cross multiply
378,337.79x = 522,110.19 × 208,577.99 - Step 4: Simplify right side
378,337.79x = 108,900,691,378.17 - Step 5: Solve for x
x = 108,900,691,378.17/378,337.79 - Step 6: Final answer
x = 287,839.85
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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.