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Finding the Third Proportional to 68,779 and 150,680

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Solution

The third proportional to 68,779 and 150,680 is: 330,107.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,779 : 150,680 = 150,680 : x
  2. Step 2: Convert to fraction form
    68,779/150,680 = 150,680/x
  3. Step 3: Cross multiply
    68,779x = 150,680 × 150,680
  4. Step 4: Simplify right side
    68,779x = 22,704,462,400
  5. Step 5: Solve for x
    x = 22,704,462,400/68,779
  6. Step 6: Final answer
    x = 330,107.48

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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.