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Finding the Third Proportional to 69,660 and 154,872

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Solution

The third proportional to 69,660 and 154,872 is: 344,320.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,660 : 154,872 = 154,872 : x
  2. Step 2: Convert to fraction form
    69,660/154,872 = 154,872/x
  3. Step 3: Cross multiply
    69,660x = 154,872 × 154,872
  4. Step 4: Simplify right side
    69,660x = 23,985,336,384
  5. Step 5: Solve for x
    x = 23,985,336,384/69,660
  6. Step 6: Final answer
    x = 344,320.07

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.