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Finding the Fourth Proportional to 384.82, 531.26 and 254.04

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Solution

The fourth proportional to 384.82, 531.26 and 254.04 is: 350.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.82 : 531.26 = 254.04 : x
  2. Step 2: Convert to fraction form
    384.82/531.26 = 254.04/x
  3. Step 3: Cross multiply
    384.82x = 531.26 × 254.04
  4. Step 4: Simplify right side
    384.82x = 134,961.29
  5. Step 5: Solve for x
    x = 134,961.29/384.82
  6. Step 6: Final answer
    x = 350.71

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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.