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Finding the Third Proportional to 121,292 and 173,681

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Solution

The third proportional to 121,292 and 173,681 is: 248,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,292 : 173,681 = 173,681 : x
  2. Step 2: Convert to fraction form
    121,292/173,681 = 173,681/x
  3. Step 3: Cross multiply
    121,292x = 173,681 × 173,681
  4. Step 4: Simplify right side
    121,292x = 30,165,089,761
  5. Step 5: Solve for x
    x = 30,165,089,761/121,292
  6. Step 6: Final answer
    x = 248,698.10

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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.