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Finding the Fourth Proportional to 221,723.70, 332,148.15 and 132,712.80

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Solution

The fourth proportional to 221,723.70, 332,148.15 and 132,712.80 is: 198,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,723.70 : 332,148.15 = 132,712.80 : x
  2. Step 2: Convert to fraction form
    221,723.70/332,148.15 = 132,712.80/x
  3. Step 3: Cross multiply
    221,723.70x = 332,148.15 × 132,712.80
  4. Step 4: Simplify right side
    221,723.70x = 44,080,311,001.32
  5. Step 5: Solve for x
    x = 44,080,311,001.32/221,723.70
  6. Step 6: Final answer
    x = 198,807.39

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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.