Finding the Fourth Proportional to 378,660.76, 522,553.62 and 208,894.84
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Solution
The fourth proportional to 378,660.76, 522,553.62 and 208,894.84 is: 288,275.86
Step by Step Solution
- Step 1: Write the proportion equation
378,660.76 : 522,553.62 = 208,894.84 : x - Step 2: Convert to fraction form
378,660.76/522,553.62 = 208,894.84/x - Step 3: Cross multiply
378,660.76x = 522,553.62 × 208,894.84 - Step 4: Simplify right side
378,660.76x = 109,158,754,841.32 - Step 5: Solve for x
x = 109,158,754,841.32/378,660.76 - Step 6: Final answer
x = 288,275.86
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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.