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Finding the Third Proportional to 156,937 and 201,505

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Solution

The third proportional to 156,937 and 201,505 is: 258,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,937 : 201,505 = 201,505 : x
  2. Step 2: Convert to fraction form
    156,937/201,505 = 201,505/x
  3. Step 3: Cross multiply
    156,937x = 201,505 × 201,505
  4. Step 4: Simplify right side
    156,937x = 40,604,265,025
  5. Step 5: Solve for x
    x = 40,604,265,025/156,937
  6. Step 6: Final answer
    x = 258,729.71

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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.