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Finding the Third Proportional to 252,285 and 401,187

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Solution

The third proportional to 252,285 and 401,187 is: 637,972.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,285 : 401,187 = 401,187 : x
  2. Step 2: Convert to fraction form
    252,285/401,187 = 401,187/x
  3. Step 3: Cross multiply
    252,285x = 401,187 × 401,187
  4. Step 4: Simplify right side
    252,285x = 160,951,008,969
  5. Step 5: Solve for x
    x = 160,951,008,969/252,285
  6. Step 6: Final answer
    x = 637,972.96

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.