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Finding the Fourth Proportional to 221,414.72, 332,132.54 and 71,666.73

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Solution

The fourth proportional to 221,414.72, 332,132.54 and 71,666.73 is: 107,503.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,414.72 : 332,132.54 = 71,666.73 : x
  2. Step 2: Convert to fraction form
    221,414.72/332,132.54 = 71,666.73/x
  3. Step 3: Cross multiply
    221,414.72x = 332,132.54 × 71,666.73
  4. Step 4: Simplify right side
    221,414.72x = 23,802,852,710.06
  5. Step 5: Solve for x
    x = 23,802,852,710.06/221,414.72
  6. Step 6: Final answer
    x = 107,503.48

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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.