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Finding the Third Proportional to 71,663 and 167,345

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Solution

The third proportional to 71,663 and 167,345 is: 390,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,663 : 167,345 = 167,345 : x
  2. Step 2: Convert to fraction form
    71,663/167,345 = 167,345/x
  3. Step 3: Cross multiply
    71,663x = 167,345 × 167,345
  4. Step 4: Simplify right side
    71,663x = 28,004,349,025
  5. Step 5: Solve for x
    x = 28,004,349,025/71,663
  6. Step 6: Final answer
    x = 390,778.35

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.