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Finding the Fourth Proportional to 269,489.90, 404,234.85 and 91,937.90

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Solution

The fourth proportional to 269,489.90, 404,234.85 and 91,937.90 is: 137,906.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,489.90 : 404,234.85 = 91,937.90 : x
  2. Step 2: Convert to fraction form
    269,489.90/404,234.85 = 91,937.90/x
  3. Step 3: Cross multiply
    269,489.90x = 404,234.85 × 91,937.90
  4. Step 4: Simplify right side
    269,489.90x = 37,164,503,215.82
  5. Step 5: Solve for x
    x = 37,164,503,215.82/269,489.90
  6. Step 6: Final answer
    x = 137,906.85

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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.