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Finding the Fourth Proportional to 573.56, 791.48 and 324.88

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Solution

The fourth proportional to 573.56, 791.48 and 324.88 is: 448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.56 : 791.48 = 324.88 : x
  2. Step 2: Convert to fraction form
    573.56/791.48 = 324.88/x
  3. Step 3: Cross multiply
    573.56x = 791.48 × 324.88
  4. Step 4: Simplify right side
    573.56x = 257,136.02
  5. Step 5: Solve for x
    x = 257,136.02/573.56
  6. Step 6: Final answer
    x = 448.32

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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.