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Finding the Fourth Proportional to 226,540.60, 339,800.10 and 76,766.20

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Solution

The fourth proportional to 226,540.60, 339,800.10 and 76,766.20 is: 115,145.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,540.60 : 339,800.10 = 76,766.20 : x
  2. Step 2: Convert to fraction form
    226,540.60/339,800.10 = 76,766.20/x
  3. Step 3: Cross multiply
    226,540.60x = 339,800.10 × 76,766.20
  4. Step 4: Simplify right side
    226,540.60x = 26,085,162,436.62
  5. Step 5: Solve for x
    x = 26,085,162,436.62/226,540.60
  6. Step 6: Final answer
    x = 115,145.64

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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.