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Finding the Third Proportional to 66,843 and 143,892

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Solution

The third proportional to 66,843 and 143,892 is: 309,754.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,843 : 143,892 = 143,892 : x
  2. Step 2: Convert to fraction form
    66,843/143,892 = 143,892/x
  3. Step 3: Cross multiply
    66,843x = 143,892 × 143,892
  4. Step 4: Simplify right side
    66,843x = 20,704,907,664
  5. Step 5: Solve for x
    x = 20,704,907,664/66,843
  6. Step 6: Final answer
    x = 309,754.31

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.