Finding the Fourth Proportional to 387,249.19, 534,454.00 and 217,483.31
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Solution
The fourth proportional to 387,249.19, 534,454.00 and 217,483.31 is: 300,155.12
Step by Step Solution
- Step 1: Write the proportion equation
387,249.19 : 534,454.00 = 217,483.31 : x - Step 2: Convert to fraction form
387,249.19/534,454.00 = 217,483.31/x - Step 3: Cross multiply
387,249.19x = 534,454.00 × 217,483.31 - Step 4: Simplify right side
387,249.19x = 116,234,825,755.17 - Step 5: Solve for x
x = 116,234,825,755.17/387,249.19 - Step 6: Final answer
x = 300,155.12
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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.