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Finding the Third Proportional to 263,996.72 and 378,001.69

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Solution

The third proportional to 263,996.72 and 378,001.69 is: 541,238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,996.72 : 378,001.69 = 378,001.69 : x
  2. Step 2: Convert to fraction form
    263,996.72/378,001.69 = 378,001.69/x
  3. Step 3: Cross multiply
    263,996.72x = 378,001.69 × 378,001.69
  4. Step 4: Simplify right side
    263,996.72x = 142,885,275,752.85
  5. Step 5: Solve for x
    x = 142,885,275,752.85/263,996.72
  6. Step 6: Final answer
    x = 541,238.83

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.