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Finding the Third Proportional to 79,918 and 169,692

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Solution

The third proportional to 79,918 and 169,692 is: 360,311.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,918 : 169,692 = 169,692 : x
  2. Step 2: Convert to fraction form
    79,918/169,692 = 169,692/x
  3. Step 3: Cross multiply
    79,918x = 169,692 × 169,692
  4. Step 4: Simplify right side
    79,918x = 28,795,374,864
  5. Step 5: Solve for x
    x = 28,795,374,864/79,918
  6. Step 6: Final answer
    x = 360,311.51

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.