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Finding the Fourth Proportional to 269,986.70, 404,979.81 and 82,997.90

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Solution

The fourth proportional to 269,986.70, 404,979.81 and 82,997.90 is: 124,496.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,986.70 : 404,979.81 = 82,997.90 : x
  2. Step 2: Convert to fraction form
    269,986.70/404,979.81 = 82,997.90/x
  3. Step 3: Cross multiply
    269,986.70x = 404,979.81 × 82,997.90
  4. Step 4: Simplify right side
    269,986.70x = 33,612,473,772.40
  5. Step 5: Solve for x
    x = 33,612,473,772.40/269,986.70
  6. Step 6: Final answer
    x = 124,496.78

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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.