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Finding the Third Proportional to 31,267 and 68,925

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Solution

The third proportional to 31,267 and 68,925 is: 151,938.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,267 : 68,925 = 68,925 : x
  2. Step 2: Convert to fraction form
    31,267/68,925 = 68,925/x
  3. Step 3: Cross multiply
    31,267x = 68,925 × 68,925
  4. Step 4: Simplify right side
    31,267x = 4,750,655,625
  5. Step 5: Solve for x
    x = 4,750,655,625/31,267
  6. Step 6: Final answer
    x = 151,938.33

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.