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Finding the Third Proportional to 68,072 and 149,583

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Solution

The third proportional to 68,072 and 149,583 is: 328,697.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,072 : 149,583 = 149,583 : x
  2. Step 2: Convert to fraction form
    68,072/149,583 = 149,583/x
  3. Step 3: Cross multiply
    68,072x = 149,583 × 149,583
  4. Step 4: Simplify right side
    68,072x = 22,375,073,889
  5. Step 5: Solve for x
    x = 22,375,073,889/68,072
  6. Step 6: Final answer
    x = 328,697.17

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.