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Finding the Fourth Proportional to 573.21, 791.02 and 324.53

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Solution

The fourth proportional to 573.21, 791.02 and 324.53 is: 447.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.21 : 791.02 = 324.53 : x
  2. Step 2: Convert to fraction form
    573.21/791.02 = 324.53/x
  3. Step 3: Cross multiply
    573.21x = 791.02 × 324.53
  4. Step 4: Simplify right side
    573.21x = 256,704.14
  5. Step 5: Solve for x
    x = 256,704.14/573.21
  6. Step 6: Final answer
    x = 447.84

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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.