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Finding the Third Proportional to 68,820 and 150,762

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Solution

The third proportional to 68,820 and 150,762 is: 330,269.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,820 : 150,762 = 150,762 : x
  2. Step 2: Convert to fraction form
    68,820/150,762 = 150,762/x
  3. Step 3: Cross multiply
    68,820x = 150,762 × 150,762
  4. Step 4: Simplify right side
    68,820x = 22,729,180,644
  5. Step 5: Solve for x
    x = 22,729,180,644/68,820
  6. Step 6: Final answer
    x = 330,269.99

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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.