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Finding the Third Proportional to 133,862 and 196,321

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Solution

The third proportional to 133,862 and 196,321 is: 287,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,862 : 196,321 = 196,321 : x
  2. Step 2: Convert to fraction form
    133,862/196,321 = 196,321/x
  3. Step 3: Cross multiply
    133,862x = 196,321 × 196,321
  4. Step 4: Simplify right side
    133,862x = 38,541,935,041
  5. Step 5: Solve for x
    x = 38,541,935,041/133,862
  6. Step 6: Final answer
    x = 287,922.90

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.