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Finding the Fourth Proportional to 378,234.78, 567,435.20 and 112,016.13

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Solution

The fourth proportional to 378,234.78, 567,435.20 and 112,016.13 is: 168,048.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,234.78 : 567,435.20 = 112,016.13 : x
  2. Step 2: Convert to fraction form
    378,234.78/567,435.20 = 112,016.13/x
  3. Step 3: Cross multiply
    378,234.78x = 567,435.20 × 112,016.13
  4. Step 4: Simplify right side
    378,234.78x = 63,561,894,569.70
  5. Step 5: Solve for x
    x = 63,561,894,569.70/378,234.78
  6. Step 6: Final answer
    x = 168,048.78

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1.5x scale

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.