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Finding the Third Proportional to 169,469 and 361,455

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Solution

The third proportional to 169,469 and 361,455 is: 770,935.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,469 : 361,455 = 361,455 : x
  2. Step 2: Convert to fraction form
    169,469/361,455 = 361,455/x
  3. Step 3: Cross multiply
    169,469x = 361,455 × 361,455
  4. Step 4: Simplify right side
    169,469x = 130,649,717,025
  5. Step 5: Solve for x
    x = 130,649,717,025/169,469
  6. Step 6: Final answer
    x = 770,935.79

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.