Home / 220,828.20-331,247.72-80,586.80

Finding the Fourth Proportional to 220,828.20, 331,247.72 and 80,586.80

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Solution

The fourth proportional to 220,828.20, 331,247.72 and 80,586.80 is: 120,882.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,828.20 : 331,247.72 = 80,586.80 : x
  2. Step 2: Convert to fraction form
    220,828.20/331,247.72 = 80,586.80/x
  3. Step 3: Cross multiply
    220,828.20x = 331,247.72 × 80,586.80
  4. Step 4: Simplify right side
    220,828.20x = 26,694,193,762.10
  5. Step 5: Solve for x
    x = 26,694,193,762.10/220,828.20
  6. Step 6: Final answer
    x = 120,882.18

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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.