Home / 234,436.20-351,654.30-76,680.60

Finding the Fourth Proportional to 234,436.20, 351,654.30 and 76,680.60

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Solution

The fourth proportional to 234,436.20, 351,654.30 and 76,680.60 is: 115,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,436.20 : 351,654.30 = 76,680.60 : x
  2. Step 2: Convert to fraction form
    234,436.20/351,654.30 = 76,680.60/x
  3. Step 3: Cross multiply
    234,436.20x = 351,654.30 × 76,680.60
  4. Step 4: Simplify right side
    234,436.20x = 26,965,062,716.58
  5. Step 5: Solve for x
    x = 26,965,062,716.58/234,436.20
  6. Step 6: Final answer
    x = 115,020.90

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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.