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Finding the Fourth Proportional to 293,151.40, 439,727.10 and 261,658.60

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Solution

The fourth proportional to 293,151.40, 439,727.10 and 261,658.60 is: 392,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,151.40 : 439,727.10 = 261,658.60 : x
  2. Step 2: Convert to fraction form
    293,151.40/439,727.10 = 261,658.60/x
  3. Step 3: Cross multiply
    293,151.40x = 439,727.10 × 261,658.60
  4. Step 4: Simplify right side
    293,151.40x = 115,058,377,368.06
  5. Step 5: Solve for x
    x = 115,058,377,368.06/293,151.40
  6. Step 6: Final answer
    x = 392,487.90

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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.