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Finding the Fourth Proportional to 382.33, 527.37 and 256.30

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Solution

The fourth proportional to 382.33, 527.37 and 256.30 is: 353.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.33 : 527.37 = 256.30 : x
  2. Step 2: Convert to fraction form
    382.33/527.37 = 256.30/x
  3. Step 3: Cross multiply
    382.33x = 527.37 × 256.30
  4. Step 4: Simplify right side
    382.33x = 135,164.93
  5. Step 5: Solve for x
    x = 135,164.93/382.33
  6. Step 6: Final answer
    x = 353.53

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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.