Home / 220,814.10-331,221.15-132,021.90

Finding the Fourth Proportional to 220,814.10, 331,221.15 and 132,021.90

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Solution

The fourth proportional to 220,814.10, 331,221.15 and 132,021.90 is: 198,032.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,814.10 : 331,221.15 = 132,021.90 : x
  2. Step 2: Convert to fraction form
    220,814.10/331,221.15 = 132,021.90/x
  3. Step 3: Cross multiply
    220,814.10x = 331,221.15 × 132,021.90
  4. Step 4: Simplify right side
    220,814.10x = 43,728,445,543.19
  5. Step 5: Solve for x
    x = 43,728,445,543.19/220,814.10
  6. Step 6: Final answer
    x = 198,032.85

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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.