Finding the Fourth Proportional to 378,446.26, 522,236.68 and 215,098.49
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Solution
The fourth proportional to 378,446.26, 522,236.68 and 215,098.49 is: 296,825.02
Step by Step Solution
- Step 1: Write the proportion equation
378,446.26 : 522,236.68 = 215,098.49 : x - Step 2: Convert to fraction form
378,446.26/522,236.68 = 215,098.49/x - Step 3: Cross multiply
378,446.26x = 522,236.68 × 215,098.49 - Step 4: Simplify right side
378,446.26x = 112,332,320,330.81 - Step 5: Solve for x
x = 112,332,320,330.81/378,446.26 - Step 6: Final answer
x = 296,825.02
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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.