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Finding the Third Proportional to 66,304 and 143,198

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Solution

The third proportional to 66,304 and 143,198 is: 309,267.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,304 : 143,198 = 143,198 : x
  2. Step 2: Convert to fraction form
    66,304/143,198 = 143,198/x
  3. Step 3: Cross multiply
    66,304x = 143,198 × 143,198
  4. Step 4: Simplify right side
    66,304x = 20,505,667,204
  5. Step 5: Solve for x
    x = 20,505,667,204/66,304
  6. Step 6: Final answer
    x = 309,267.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.