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Finding the Third Proportional to 135,443 and 201,215

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Solution

The third proportional to 135,443 and 201,215 is: 298,926.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,443 : 201,215 = 201,215 : x
  2. Step 2: Convert to fraction form
    135,443/201,215 = 201,215/x
  3. Step 3: Cross multiply
    135,443x = 201,215 × 201,215
  4. Step 4: Simplify right side
    135,443x = 40,487,476,225
  5. Step 5: Solve for x
    x = 40,487,476,225/135,443
  6. Step 6: Final answer
    x = 298,926.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.