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Finding the Fourth Proportional to 269,735.20, 404,505.60 and 136,571.20

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Solution

The fourth proportional to 269,735.20, 404,505.60 and 136,571.20 is: 204,807.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,735.20 : 404,505.60 = 136,571.20 : x
  2. Step 2: Convert to fraction form
    269,735.20/404,505.60 = 136,571.20/x
  3. Step 3: Cross multiply
    269,735.20x = 404,505.60 × 136,571.20
  4. Step 4: Simplify right side
    269,735.20x = 55,243,815,198.72
  5. Step 5: Solve for x
    x = 55,243,815,198.72/269,735.20
  6. Step 6: Final answer
    x = 204,807.59

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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.