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Finding the Third Proportional to 121,912 and 182,868

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Solution

The third proportional to 121,912 and 182,868 is: 274,302

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,912 : 182,868 = 182,868 : x
  2. Step 2: Convert to fraction form
    121,912/182,868 = 182,868/x
  3. Step 3: Cross multiply
    121,912x = 182,868 × 182,868
  4. Step 4: Simplify right side
    121,912x = 33,440,705,424
  5. Step 5: Solve for x
    x = 33,440,705,424/121,912
  6. Step 6: Final answer
    x = 274,302

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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.