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Finding the Third Proportional to 68,520 and 148,812

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Solution

The third proportional to 68,520 and 148,812 is: 323,190.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,520 : 148,812 = 148,812 : x
  2. Step 2: Convert to fraction form
    68,520/148,812 = 148,812/x
  3. Step 3: Cross multiply
    68,520x = 148,812 × 148,812
  4. Step 4: Simplify right side
    68,520x = 22,145,011,344
  5. Step 5: Solve for x
    x = 22,145,011,344/68,520
  6. Step 6: Final answer
    x = 323,190.47

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.