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Finding the Third Proportional to 171,852 and 378,600

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Solution

The third proportional to 171,852 and 378,600 is: 834,077.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,852 : 378,600 = 378,600 : x
  2. Step 2: Convert to fraction form
    171,852/378,600 = 378,600/x
  3. Step 3: Cross multiply
    171,852x = 378,600 × 378,600
  4. Step 4: Simplify right side
    171,852x = 143,337,960,000
  5. Step 5: Solve for x
    x = 143,337,960,000/171,852
  6. Step 6: Final answer
    x = 834,077.93

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.