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Finding the Third Proportional to 37,879 and 82,310

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Solution

The third proportional to 37,879 and 82,310 is: 178,857.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,879 : 82,310 = 82,310 : x
  2. Step 2: Convert to fraction form
    37,879/82,310 = 82,310/x
  3. Step 3: Cross multiply
    37,879x = 82,310 × 82,310
  4. Step 4: Simplify right side
    37,879x = 6,774,936,100
  5. Step 5: Solve for x
    x = 6,774,936,100/37,879
  6. Step 6: Final answer
    x = 178,857.31

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.