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Finding the Third Proportional to 167,712 and 361,680

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Solution

The third proportional to 167,712 and 361,680 is: 779,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,712 : 361,680 = 361,680 : x
  2. Step 2: Convert to fraction form
    167,712/361,680 = 361,680/x
  3. Step 3: Cross multiply
    167,712x = 361,680 × 361,680
  4. Step 4: Simplify right side
    167,712x = 130,812,422,400
  5. Step 5: Solve for x
    x = 130,812,422,400/167,712
  6. Step 6: Final answer
    x = 779,982.48

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.