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Finding the Third Proportional to 66,984 and 140,862

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Solution

The third proportional to 66,984 and 140,862 is: 296,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,984 : 140,862 = 140,862 : x
  2. Step 2: Convert to fraction form
    66,984/140,862 = 140,862/x
  3. Step 3: Cross multiply
    66,984x = 140,862 × 140,862
  4. Step 4: Simplify right side
    66,984x = 19,842,103,044
  5. Step 5: Solve for x
    x = 19,842,103,044/66,984
  6. Step 6: Final answer
    x = 296,221.53

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.