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Finding the Third Proportional to 156,937 and 322,135

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Solution

The third proportional to 156,937 and 322,135 is: 661,226.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,937 : 322,135 = 322,135 : x
  2. Step 2: Convert to fraction form
    156,937/322,135 = 322,135/x
  3. Step 3: Cross multiply
    156,937x = 322,135 × 322,135
  4. Step 4: Simplify right side
    156,937x = 103,770,958,225
  5. Step 5: Solve for x
    x = 103,770,958,225/156,937
  6. Step 6: Final answer
    x = 661,226.85

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.