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Finding the Fourth Proportional to 573.28, 791.27 and 352.55

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Solution

The fourth proportional to 573.28, 791.27 and 352.55 is: 486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.28 : 791.27 = 352.55 : x
  2. Step 2: Convert to fraction form
    573.28/791.27 = 352.55/x
  3. Step 3: Cross multiply
    573.28x = 791.27 × 352.55
  4. Step 4: Simplify right side
    573.28x = 278,963.78
  5. Step 5: Solve for x
    x = 278,963.78/573.28
  6. Step 6: Final answer
    x = 486.61

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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.