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Finding the Third Proportional to 121,197 and 248,268

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Solution

The third proportional to 121,197 and 248,268 is: 508,568.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,197 : 248,268 = 248,268 : x
  2. Step 2: Convert to fraction form
    121,197/248,268 = 248,268/x
  3. Step 3: Cross multiply
    121,197x = 248,268 × 248,268
  4. Step 4: Simplify right side
    121,197x = 61,636,999,824
  5. Step 5: Solve for x
    x = 61,636,999,824/121,197
  6. Step 6: Final answer
    x = 508,568.69

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.