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Finding the Third Proportional to 61,300 and 132,278

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Solution

The third proportional to 61,300 and 132,278 is: 285,439.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,300 : 132,278 = 132,278 : x
  2. Step 2: Convert to fraction form
    61,300/132,278 = 132,278/x
  3. Step 3: Cross multiply
    61,300x = 132,278 × 132,278
  4. Step 4: Simplify right side
    61,300x = 17,497,469,284
  5. Step 5: Solve for x
    x = 17,497,469,284/61,300
  6. Step 6: Final answer
    x = 285,439.96

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.