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Finding the Third Proportional to 80,803 and 171,819

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Solution

The third proportional to 80,803 and 171,819 is: 365,354.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,803 : 171,819 = 171,819 : x
  2. Step 2: Convert to fraction form
    80,803/171,819 = 171,819/x
  3. Step 3: Cross multiply
    80,803x = 171,819 × 171,819
  4. Step 4: Simplify right side
    80,803x = 29,521,768,761
  5. Step 5: Solve for x
    x = 29,521,768,761/80,803
  6. Step 6: Final answer
    x = 365,354.86

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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.