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Finding the Fourth Proportional to 234,630.60, 351,945.90 and 76,864.20

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Solution

The fourth proportional to 234,630.60, 351,945.90 and 76,864.20 is: 115,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,630.60 : 351,945.90 = 76,864.20 : x
  2. Step 2: Convert to fraction form
    234,630.60/351,945.90 = 76,864.20/x
  3. Step 3: Cross multiply
    234,630.60x = 351,945.90 × 76,864.20
  4. Step 4: Simplify right side
    234,630.60x = 27,052,040,046.78
  5. Step 5: Solve for x
    x = 27,052,040,046.78/234,630.60
  6. Step 6: Final answer
    x = 115,296.30

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1.5x scale

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.