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Finding the Fourth Proportional to 240,820.75, 361,231.97 and 80,892.11

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Solution

The fourth proportional to 240,820.75, 361,231.97 and 80,892.11 is: 121,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,820.75 : 361,231.97 = 80,892.11 : x
  2. Step 2: Convert to fraction form
    240,820.75/361,231.97 = 80,892.11/x
  3. Step 3: Cross multiply
    240,820.75x = 361,231.97 × 80,892.11
  4. Step 4: Simplify right side
    240,820.75x = 29,220,815,201.48
  5. Step 5: Solve for x
    x = 29,220,815,201.48/240,820.75
  6. Step 6: Final answer
    x = 121,338.45

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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.