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Finding the Third Proportional to 378.38 and 525.94

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Solution

The third proportional to 378.38 and 525.94 is: 731.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.38 : 525.94 = 525.94 : x
  2. Step 2: Convert to fraction form
    378.38/525.94 = 525.94/x
  3. Step 3: Cross multiply
    378.38x = 525.94 × 525.94
  4. Step 4: Simplify right side
    378.38x = 276,610.25
  5. Step 5: Solve for x
    x = 276,610.25/378.38
  6. Step 6: Final answer
    x = 731.05

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.