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Finding the Third Proportional to 121,831 and 187,504

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Solution

The third proportional to 121,831 and 187,504 is: 288,578.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,831 : 187,504 = 187,504 : x
  2. Step 2: Convert to fraction form
    121,831/187,504 = 187,504/x
  3. Step 3: Cross multiply
    121,831x = 187,504 × 187,504
  4. Step 4: Simplify right side
    121,831x = 35,157,750,016
  5. Step 5: Solve for x
    x = 35,157,750,016/121,831
  6. Step 6: Final answer
    x = 288,578.03

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.