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Finding the Third Proportional to 76,683 and 165,678

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Solution

The third proportional to 76,683 and 165,678 is: 357,956.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,683 : 165,678 = 165,678 : x
  2. Step 2: Convert to fraction form
    76,683/165,678 = 165,678/x
  3. Step 3: Cross multiply
    76,683x = 165,678 × 165,678
  4. Step 4: Simplify right side
    76,683x = 27,449,199,684
  5. Step 5: Solve for x
    x = 27,449,199,684/76,683
  6. Step 6: Final answer
    x = 357,956.78

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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.