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Finding the Third Proportional to 121,883 and 266,122

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Solution

The third proportional to 121,883 and 266,122 is: 581,056.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,883 : 266,122 = 266,122 : x
  2. Step 2: Convert to fraction form
    121,883/266,122 = 266,122/x
  3. Step 3: Cross multiply
    121,883x = 266,122 × 266,122
  4. Step 4: Simplify right side
    121,883x = 70,820,918,884
  5. Step 5: Solve for x
    x = 70,820,918,884/121,883
  6. Step 6: Final answer
    x = 581,056.58

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.