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Finding the Third Proportional to 171,558.75 and 378,018.75

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Solution

The third proportional to 171,558.75 and 378,018.75 is: 832,940.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,558.75 : 378,018.75 = 378,018.75 : x
  2. Step 2: Convert to fraction form
    171,558.75/378,018.75 = 378,018.75/x
  3. Step 3: Cross multiply
    171,558.75x = 378,018.75 × 378,018.75
  4. Step 4: Simplify right side
    171,558.75x = 142,898,175,351.56
  5. Step 5: Solve for x
    x = 142,898,175,351.56/171,558.75
  6. Step 6: Final answer
    x = 832,940.18

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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.