Home / 221,635.20-332,234.10-109,223.40

Finding the Fourth Proportional to 221,635.20, 332,234.10 and 109,223.40

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Solution

The fourth proportional to 221,635.20, 332,234.10 and 109,223.40 is: 163,727.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,635.20 : 332,234.10 = 109,223.40 : x
  2. Step 2: Convert to fraction form
    221,635.20/332,234.10 = 109,223.40/x
  3. Step 3: Cross multiply
    221,635.20x = 332,234.10 × 109,223.40
  4. Step 4: Simplify right side
    221,635.20x = 36,287,737,997.94
  5. Step 5: Solve for x
    x = 36,287,737,997.94/221,635.20
  6. Step 6: Final answer
    x = 163,727.32

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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.