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Finding the Fourth Proportional to 380.04, 524.27 and 255.73

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Solution

The fourth proportional to 380.04, 524.27 and 255.73 is: 352.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.04 : 524.27 = 255.73 : x
  2. Step 2: Convert to fraction form
    380.04/524.27 = 255.73/x
  3. Step 3: Cross multiply
    380.04x = 524.27 × 255.73
  4. Step 4: Simplify right side
    380.04x = 134,073.35
  5. Step 5: Solve for x
    x = 134,073.35/380.04
  6. Step 6: Final answer
    x = 352.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.