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Finding the Fourth Proportional to 252,753.80, 379,130.70 and 65,765.30

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Solution

The fourth proportional to 252,753.80, 379,130.70 and 65,765.30 is: 98,647.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,753.80 : 379,130.70 = 65,765.30 : x
  2. Step 2: Convert to fraction form
    252,753.80/379,130.70 = 65,765.30/x
  3. Step 3: Cross multiply
    252,753.80x = 379,130.70 × 65,765.30
  4. Step 4: Simplify right side
    252,753.80x = 24,933,644,224.71
  5. Step 5: Solve for x
    x = 24,933,644,224.71/252,753.80
  6. Step 6: Final answer
    x = 98,647.95

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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.