Finding the Fourth Proportional to 378,813.27, 522,761.94 and 242,847.09
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Solution
The fourth proportional to 378,813.27, 522,761.94 and 242,847.09 is: 335,128.75
Step by Step Solution
- Step 1: Write the proportion equation
378,813.27 : 522,761.94 = 242,847.09 : x - Step 2: Convert to fraction form
378,813.27/522,761.94 = 242,847.09/x - Step 3: Cross multiply
378,813.27x = 522,761.94 × 242,847.09 - Step 4: Simplify right side
378,813.27x = 126,951,215,891.76 - Step 5: Solve for x
x = 126,951,215,891.76/378,813.27 - Step 6: Final answer
x = 335,128.75
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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.