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Finding the Third Proportional to 55,357 and 117,965

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Solution

The third proportional to 55,357 and 117,965 is: 251,381.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,357 : 117,965 = 117,965 : x
  2. Step 2: Convert to fraction form
    55,357/117,965 = 117,965/x
  3. Step 3: Cross multiply
    55,357x = 117,965 × 117,965
  4. Step 4: Simplify right side
    55,357x = 13,915,741,225
  5. Step 5: Solve for x
    x = 13,915,741,225/55,357
  6. Step 6: Final answer
    x = 251,381.78

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.