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Finding the Third Proportional to 80,185.50 and 172,217.25

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Solution

The third proportional to 80,185.50 and 172,217.25 is: 369,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,185.50 : 172,217.25 = 172,217.25 : x
  2. Step 2: Convert to fraction form
    80,185.50/172,217.25 = 172,217.25/x
  3. Step 3: Cross multiply
    80,185.50x = 172,217.25 × 172,217.25
  4. Step 4: Simplify right side
    80,185.50x = 29,658,781,197.56
  5. Step 5: Solve for x
    x = 29,658,781,197.56/80,185.50
  6. Step 6: Final answer
    x = 369,877.11

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.