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Finding the Third Proportional to 68,986 and 151,520

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Solution

The third proportional to 68,986 and 151,520 is: 332,796.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,986 : 151,520 = 151,520 : x
  2. Step 2: Convert to fraction form
    68,986/151,520 = 151,520/x
  3. Step 3: Cross multiply
    68,986x = 151,520 × 151,520
  4. Step 4: Simplify right side
    68,986x = 22,958,310,400
  5. Step 5: Solve for x
    x = 22,958,310,400/68,986
  6. Step 6: Final answer
    x = 332,796.66

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.