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Finding the Fourth Proportional to 356,472.10, 534,708.15 and 223,761.70

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Solution

The fourth proportional to 356,472.10, 534,708.15 and 223,761.70 is: 335,642.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,472.10 : 534,708.15 = 223,761.70 : x
  2. Step 2: Convert to fraction form
    356,472.10/534,708.15 = 223,761.70/x
  3. Step 3: Cross multiply
    356,472.10x = 534,708.15 × 223,761.70
  4. Step 4: Simplify right side
    356,472.10x = 119,647,204,647.86
  5. Step 5: Solve for x
    x = 119,647,204,647.86/356,472.10
  6. Step 6: Final answer
    x = 335,642.55

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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.