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Finding the Fourth Proportional to 269,687.20, 404,433.60 and 136,523.20

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Solution

The fourth proportional to 269,687.20, 404,433.60 and 136,523.20 is: 204,735.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,687.20 : 404,433.60 = 136,523.20 : x
  2. Step 2: Convert to fraction form
    269,687.20/404,433.60 = 136,523.20/x
  3. Step 3: Cross multiply
    269,687.20x = 404,433.60 × 136,523.20
  4. Step 4: Simplify right side
    269,687.20x = 55,214,569,259.52
  5. Step 5: Solve for x
    x = 55,214,569,259.52/269,687.20
  6. Step 6: Final answer
    x = 204,735.59

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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.