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Finding the Third Proportional to 87,326 and 189,772

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Solution

The third proportional to 87,326 and 189,772 is: 412,401.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,326 : 189,772 = 189,772 : x
  2. Step 2: Convert to fraction form
    87,326/189,772 = 189,772/x
  3. Step 3: Cross multiply
    87,326x = 189,772 × 189,772
  4. Step 4: Simplify right side
    87,326x = 36,013,411,984
  5. Step 5: Solve for x
    x = 36,013,411,984/87,326
  6. Step 6: Final answer
    x = 412,401.94

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.