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Finding the Third Proportional to 121,368 and 181,112

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Solution

The third proportional to 121,368 and 181,112 is: 270,265.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,368 : 181,112 = 181,112 : x
  2. Step 2: Convert to fraction form
    121,368/181,112 = 181,112/x
  3. Step 3: Cross multiply
    121,368x = 181,112 × 181,112
  4. Step 4: Simplify right side
    121,368x = 32,801,556,544
  5. Step 5: Solve for x
    x = 32,801,556,544/121,368
  6. Step 6: Final answer
    x = 270,265.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.