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Finding the Fourth Proportional to 275,719.88, 413,635.14 and 125,919.90

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Solution

The fourth proportional to 275,719.88, 413,635.14 and 125,919.90 is: 188,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,719.88 : 413,635.14 = 125,919.90 : x
  2. Step 2: Convert to fraction form
    275,719.88/413,635.14 = 125,919.90/x
  3. Step 3: Cross multiply
    275,719.88x = 413,635.14 × 125,919.90
  4. Step 4: Simplify right side
    275,719.88x = 52,084,895,465.29
  5. Step 5: Solve for x
    x = 52,084,895,465.29/275,719.88
  6. Step 6: Final answer
    x = 188,905.11

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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.