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Finding the Fourth Proportional to 269,337.20, 404,005.80 and 129,023.60

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Solution

The fourth proportional to 269,337.20, 404,005.80 and 129,023.60 is: 193,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,337.20 : 404,005.80 = 129,023.60 : x
  2. Step 2: Convert to fraction form
    269,337.20/404,005.80 = 129,023.60/x
  3. Step 3: Cross multiply
    269,337.20x = 404,005.80 × 129,023.60
  4. Step 4: Simplify right side
    269,337.20x = 52,126,282,736.88
  5. Step 5: Solve for x
    x = 52,126,282,736.88/269,337.20
  6. Step 6: Final answer
    x = 193,535.40

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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.