Home / 220,987.20-331,262.10-108,575.40

Finding the Fourth Proportional to 220,987.20, 331,262.10 and 108,575.40

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Solution

The fourth proportional to 220,987.20, 331,262.10 and 108,575.40 is: 162,755.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,987.20 : 331,262.10 = 108,575.40 : x
  2. Step 2: Convert to fraction form
    220,987.20/331,262.10 = 108,575.40/x
  3. Step 3: Cross multiply
    220,987.20x = 331,262.10 × 108,575.40
  4. Step 4: Simplify right side
    220,987.20x = 35,966,915,012.34
  5. Step 5: Solve for x
    x = 35,966,915,012.34/220,987.20
  6. Step 6: Final answer
    x = 162,755.65

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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.