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Finding the Third Proportional to 120,982 and 192,170

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Solution

The third proportional to 120,982 and 192,170 is: 305,246.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,982 : 192,170 = 192,170 : x
  2. Step 2: Convert to fraction form
    120,982/192,170 = 192,170/x
  3. Step 3: Cross multiply
    120,982x = 192,170 × 192,170
  4. Step 4: Simplify right side
    120,982x = 36,929,308,900
  5. Step 5: Solve for x
    x = 36,929,308,900/120,982
  6. Step 6: Final answer
    x = 305,246.31

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.