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Finding the Fourth Proportional to 221,423.14, 332,187.41 and 71,663.43

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Solution

The fourth proportional to 221,423.14, 332,187.41 and 71,663.43 is: 107,512.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,423.14 : 332,187.41 = 71,663.43 : x
  2. Step 2: Convert to fraction form
    221,423.14/332,187.41 = 71,663.43/x
  3. Step 3: Cross multiply
    221,423.14x = 332,187.41 × 71,663.43
  4. Step 4: Simplify right side
    221,423.14x = 23,805,690,213.04
  5. Step 5: Solve for x
    x = 23,805,690,213.04/221,423.14
  6. Step 6: Final answer
    x = 107,512.21

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1.5x scale

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.