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Finding the Third Proportional to 121,302 and 173,696

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Solution

The third proportional to 121,302 and 173,696 is: 248,720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,302 : 173,696 = 173,696 : x
  2. Step 2: Convert to fraction form
    121,302/173,696 = 173,696/x
  3. Step 3: Cross multiply
    121,302x = 173,696 × 173,696
  4. Step 4: Simplify right side
    121,302x = 30,170,300,416
  5. Step 5: Solve for x
    x = 30,170,300,416/121,302
  6. Step 6: Final answer
    x = 248,720.55

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.