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Finding the Third Proportional to 172,936.50 and 372,555

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Solution

The third proportional to 172,936.50 and 372,555 is: 802,590.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,936.50 : 372,555 = 372,555 : x
  2. Step 2: Convert to fraction form
    172,936.50/372,555 = 372,555/x
  3. Step 3: Cross multiply
    172,936.50x = 372,555 × 372,555
  4. Step 4: Simplify right side
    172,936.50x = 138,797,228,025
  5. Step 5: Solve for x
    x = 138,797,228,025/172,936.50
  6. Step 6: Final answer
    x = 802,590.71

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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.