Home / 220,831.20-331,252.22-80,589.80

Finding the Fourth Proportional to 220,831.20, 331,252.22 and 80,589.80

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Solution

The fourth proportional to 220,831.20, 331,252.22 and 80,589.80 is: 120,886.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,831.20 : 331,252.22 = 80,589.80 : x
  2. Step 2: Convert to fraction form
    220,831.20/331,252.22 = 80,589.80/x
  3. Step 3: Cross multiply
    220,831.20x = 331,252.22 × 80,589.80
  4. Step 4: Simplify right side
    220,831.20x = 26,695,550,159.36
  5. Step 5: Solve for x
    x = 26,695,550,159.36/220,831.20
  6. Step 6: Final answer
    x = 120,886.68

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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.