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Finding the Fourth Proportional to 360.39, 540.44 and 250.66

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Solution

The fourth proportional to 360.39, 540.44 and 250.66 is: 375.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.39 : 540.44 = 250.66 : x
  2. Step 2: Convert to fraction form
    360.39/540.44 = 250.66/x
  3. Step 3: Cross multiply
    360.39x = 540.44 × 250.66
  4. Step 4: Simplify right side
    360.39x = 135,464.09
  5. Step 5: Solve for x
    x = 135,464.09/360.39
  6. Step 6: Final answer
    x = 375.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.