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Finding the Third Proportional to 68,327 and 149,816

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Solution

The third proportional to 68,327 and 149,816 is: 328,491.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,327 : 149,816 = 149,816 : x
  2. Step 2: Convert to fraction form
    68,327/149,816 = 149,816/x
  3. Step 3: Cross multiply
    68,327x = 149,816 × 149,816
  4. Step 4: Simplify right side
    68,327x = 22,444,833,856
  5. Step 5: Solve for x
    x = 22,444,833,856/68,327
  6. Step 6: Final answer
    x = 328,491.43

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.