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Finding the Third Proportional to 132,423 and 198,930

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Solution

The third proportional to 132,423 and 198,930 is: 298,838.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,423 : 198,930 = 198,930 : x
  2. Step 2: Convert to fraction form
    132,423/198,930 = 198,930/x
  3. Step 3: Cross multiply
    132,423x = 198,930 × 198,930
  4. Step 4: Simplify right side
    132,423x = 39,573,144,900
  5. Step 5: Solve for x
    x = 39,573,144,900/132,423
  6. Step 6: Final answer
    x = 298,838.91

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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.