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Finding the Third Proportional to 121,602 and 299,893

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Solution

The third proportional to 121,602 and 299,893 is: 739,591.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,602 : 299,893 = 299,893 : x
  2. Step 2: Convert to fraction form
    121,602/299,893 = 299,893/x
  3. Step 3: Cross multiply
    121,602x = 299,893 × 299,893
  4. Step 4: Simplify right side
    121,602x = 89,935,811,449
  5. Step 5: Solve for x
    x = 89,935,811,449/121,602
  6. Step 6: Final answer
    x = 739,591.55

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Why These Related Problems?

These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.