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Finding the Fourth Proportional to 269,600.70, 404,401.05 and 129,287.10

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Solution

The fourth proportional to 269,600.70, 404,401.05 and 129,287.10 is: 193,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,600.70 : 404,401.05 = 129,287.10 : x
  2. Step 2: Convert to fraction form
    269,600.70/404,401.05 = 129,287.10/x
  3. Step 3: Cross multiply
    269,600.70x = 404,401.05 × 129,287.10
  4. Step 4: Simplify right side
    269,600.70x = 52,283,838,991.46
  5. Step 5: Solve for x
    x = 52,283,838,991.46/269,600.70
  6. Step 6: Final answer
    x = 193,930.65

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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.