Home / 220,735.05-331,151.91-80,493.66

Finding the Fourth Proportional to 220,735.05, 331,151.91 and 80,493.66

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Solution

The fourth proportional to 220,735.05, 331,151.91 and 80,493.66 is: 120,758.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,735.05 : 331,151.91 = 80,493.66 : x
  2. Step 2: Convert to fraction form
    220,735.05/331,151.91 = 80,493.66/x
  3. Step 3: Cross multiply
    220,735.05x = 331,151.91 × 80,493.66
  4. Step 4: Simplify right side
    220,735.05x = 26,655,629,251.89
  5. Step 5: Solve for x
    x = 26,655,629,251.89/220,735.05
  6. Step 6: Final answer
    x = 120,758.48

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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.