Home / 220,929.32-331,447.02-71,183.78

Finding the Fourth Proportional to 220,929.32, 331,447.02 and 71,183.78

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Solution

The fourth proportional to 220,929.32, 331,447.02 and 71,183.78 is: 106,792.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,929.32 : 331,447.02 = 71,183.78 : x
  2. Step 2: Convert to fraction form
    220,929.32/331,447.02 = 71,183.78/x
  3. Step 3: Cross multiply
    220,929.32x = 331,447.02 × 71,183.78
  4. Step 4: Simplify right side
    220,929.32x = 23,593,651,753.34
  5. Step 5: Solve for x
    x = 23,593,651,753.34/220,929.32
  6. Step 6: Final answer
    x = 106,792.76

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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.