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Finding the Third Proportional to 82,233 and 128,475

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Solution

The third proportional to 82,233 and 128,475 is: 200,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,233 : 128,475 = 128,475 : x
  2. Step 2: Convert to fraction form
    82,233/128,475 = 128,475/x
  3. Step 3: Cross multiply
    82,233x = 128,475 × 128,475
  4. Step 4: Simplify right side
    82,233x = 16,505,825,625
  5. Step 5: Solve for x
    x = 16,505,825,625/82,233
  6. Step 6: Final answer
    x = 200,720.22

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.