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Finding the Third Proportional to 121,857 and 247,062

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Solution

The third proportional to 121,857 and 247,062 is: 500,911.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,857 : 247,062 = 247,062 : x
  2. Step 2: Convert to fraction form
    121,857/247,062 = 247,062/x
  3. Step 3: Cross multiply
    121,857x = 247,062 × 247,062
  4. Step 4: Simplify right side
    121,857x = 61,039,631,844
  5. Step 5: Solve for x
    x = 61,039,631,844/121,857
  6. Step 6: Final answer
    x = 500,911.99

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.