Finding the Fourth Proportional to 378,497.27, 522,325.87 and 206,415.56
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Solution
The fourth proportional to 378,497.27, 522,325.87 and 206,415.56 is: 284,853.28
Step by Step Solution
- Step 1: Write the proportion equation
378,497.27 : 522,325.87 = 206,415.56 : x - Step 2: Convert to fraction form
378,497.27/522,325.87 = 206,415.56/x - Step 3: Cross multiply
378,497.27x = 522,325.87 × 206,415.56 - Step 4: Simplify right side
378,497.27x = 107,816,187,748.31 - Step 5: Solve for x
x = 107,816,187,748.31/378,497.27 - Step 6: Final answer
x = 284,853.28
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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.