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Finding the Third Proportional to 171,321.75 and 251,138.81

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Solution

The third proportional to 171,321.75 and 251,138.81 is: 368,141.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,321.75 : 251,138.81 = 251,138.81 : x
  2. Step 2: Convert to fraction form
    171,321.75/251,138.81 = 251,138.81/x
  3. Step 3: Cross multiply
    171,321.75x = 251,138.81 × 251,138.81
  4. Step 4: Simplify right side
    171,321.75x = 63,070,703,143.91
  5. Step 5: Solve for x
    x = 63,070,703,143.91/171,321.75
  6. Step 6: Final answer
    x = 368,141.83

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.