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Finding the Third Proportional to 132,938 and 221,559

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Solution

The third proportional to 132,938 and 221,559 is: 369,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,938 : 221,559 = 221,559 : x
  2. Step 2: Convert to fraction form
    132,938/221,559 = 221,559/x
  3. Step 3: Cross multiply
    132,938x = 221,559 × 221,559
  4. Step 4: Simplify right side
    132,938x = 49,088,390,481
  5. Step 5: Solve for x
    x = 49,088,390,481/132,938
  6. Step 6: Final answer
    x = 369,257.78

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.