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Finding the Fourth Proportional to 340,882.60, 511,400.70 and 104,236.20

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Solution

The fourth proportional to 340,882.60, 511,400.70 and 104,236.20 is: 156,377.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,882.60 : 511,400.70 = 104,236.20 : x
  2. Step 2: Convert to fraction form
    340,882.60/511,400.70 = 104,236.20/x
  3. Step 3: Cross multiply
    340,882.60x = 511,400.70 × 104,236.20
  4. Step 4: Simplify right side
    340,882.60x = 53,306,465,645.34
  5. Step 5: Solve for x
    x = 53,306,465,645.34/340,882.60
  6. Step 6: Final answer
    x = 156,377.78

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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.