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Finding the Third Proportional to 156,975 and 201,561

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Solution

The third proportional to 156,975 and 201,561 is: 258,810.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975 : 201,561 = 201,561 : x
  2. Step 2: Convert to fraction form
    156,975/201,561 = 201,561/x
  3. Step 3: Cross multiply
    156,975x = 201,561 × 201,561
  4. Step 4: Simplify right side
    156,975x = 40,626,836,721
  5. Step 5: Solve for x
    x = 40,626,836,721/156,975
  6. Step 6: Final answer
    x = 258,810.87

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.