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Finding the Fourth Proportional to 269,778.92, 404,668.22 and 80,238.51

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Solution

The fourth proportional to 269,778.92, 404,668.22 and 80,238.51 is: 120,357.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,778.92 : 404,668.22 = 80,238.51 : x
  2. Step 2: Convert to fraction form
    269,778.92/404,668.22 = 80,238.51/x
  3. Step 3: Cross multiply
    269,778.92x = 404,668.22 × 80,238.51
  4. Step 4: Simplify right side
    269,778.92x = 32,469,974,615.96
  5. Step 5: Solve for x
    x = 32,469,974,615.96/269,778.92
  6. Step 6: Final answer
    x = 120,357.72

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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.