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Finding the Third Proportional to 121,900 and 183,186

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Solution

The third proportional to 121,900 and 183,186 is: 275,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,900 : 183,186 = 183,186 : x
  2. Step 2: Convert to fraction form
    121,900/183,186 = 183,186/x
  3. Step 3: Cross multiply
    121,900x = 183,186 × 183,186
  4. Step 4: Simplify right side
    121,900x = 33,557,110,596
  5. Step 5: Solve for x
    x = 33,557,110,596/121,900
  6. Step 6: Final answer
    x = 275,283.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.