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Finding the Third Proportional to 66,868 and 144,188

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Solution

The third proportional to 66,868 and 144,188 is: 310,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,868 : 144,188 = 144,188 : x
  2. Step 2: Convert to fraction form
    66,868/144,188 = 144,188/x
  3. Step 3: Cross multiply
    66,868x = 144,188 × 144,188
  4. Step 4: Simplify right side
    66,868x = 20,790,179,344
  5. Step 5: Solve for x
    x = 20,790,179,344/66,868
  6. Step 6: Final answer
    x = 310,913.73

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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.