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Finding the Fourth Proportional to 378,456.28, 567,519.58 and 108,524.78

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Solution

The fourth proportional to 378,456.28, 567,519.58 and 108,524.78 is: 162,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,456.28 : 567,519.58 = 108,524.78 : x
  2. Step 2: Convert to fraction form
    378,456.28/567,519.58 = 108,524.78/x
  3. Step 3: Cross multiply
    378,456.28x = 567,519.58 × 108,524.78
  4. Step 4: Simplify right side
    378,456.28x = 61,589,937,565.19
  5. Step 5: Solve for x
    x = 61,589,937,565.19/378,456.28
  6. Step 6: Final answer
    x = 162,739.90

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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.