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Finding the Fourth Proportional to 381.73, 573.27 and 284.26

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Solution

The fourth proportional to 381.73, 573.27 and 284.26 is: 426.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.73 : 573.27 = 284.26 : x
  2. Step 2: Convert to fraction form
    381.73/573.27 = 284.26/x
  3. Step 3: Cross multiply
    381.73x = 573.27 × 284.26
  4. Step 4: Simplify right side
    381.73x = 162,957.73
  5. Step 5: Solve for x
    x = 162,957.73/381.73
  6. Step 6: Final answer
    x = 426.89

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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.