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Finding the Third Proportional to 66,674 and 145,801

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Solution

The third proportional to 66,674 and 145,801 is: 318,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,674 : 145,801 = 145,801 : x
  2. Step 2: Convert to fraction form
    66,674/145,801 = 145,801/x
  3. Step 3: Cross multiply
    66,674x = 145,801 × 145,801
  4. Step 4: Simplify right side
    66,674x = 21,257,931,601
  5. Step 5: Solve for x
    x = 21,257,931,601/66,674
  6. Step 6: Final answer
    x = 318,833.90

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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.