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Finding the Third Proportional to 169,290 and 361,902

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Solution

The third proportional to 169,290 and 361,902 is: 773,660.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,290 : 361,902 = 361,902 : x
  2. Step 2: Convert to fraction form
    169,290/361,902 = 361,902/x
  3. Step 3: Cross multiply
    169,290x = 361,902 × 361,902
  4. Step 4: Simplify right side
    169,290x = 130,973,057,604
  5. Step 5: Solve for x
    x = 130,973,057,604/169,290
  6. Step 6: Final answer
    x = 773,660.92

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.