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Finding the Third Proportional to 183.25 and 378.13

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Solution

The third proportional to 183.25 and 378.13 is: 780.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.25 : 378.13 = 378.13 : x
  2. Step 2: Convert to fraction form
    183.25/378.13 = 378.13/x
  3. Step 3: Cross multiply
    183.25x = 378.13 × 378.13
  4. Step 4: Simplify right side
    183.25x = 142,978.52
  5. Step 5: Solve for x
    x = 142,978.52/183.25
  6. Step 6: Final answer
    x = 780.24

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.