Finding the Fourth Proportional to 378,265.05, 567,286.85 and 311,539.68
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Solution
The fourth proportional to 378,265.05, 567,286.85 and 311,539.68 is: 467,218.33
Step by Step Solution
- Step 1: Write the proportion equation
378,265.05 : 567,286.85 = 311,539.68 : x - Step 2: Convert to fraction form
378,265.05/567,286.85 = 311,539.68/x - Step 3: Cross multiply
378,265.05x = 567,286.85 × 311,539.68 - Step 4: Simplify right side
378,265.05x = 176,732,362,024.36 - Step 5: Solve for x
x = 176,732,362,024.36/378,265.05 - Step 6: Final answer
x = 467,218.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.