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Finding the Fourth Proportional to 573.85, 791.99 and 325.18

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Solution

The fourth proportional to 573.85, 791.99 and 325.18 is: 448.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.85 : 791.99 = 325.18 : x
  2. Step 2: Convert to fraction form
    573.85/791.99 = 325.18/x
  3. Step 3: Cross multiply
    573.85x = 791.99 × 325.18
  4. Step 4: Simplify right side
    573.85x = 257,539.31
  5. Step 5: Solve for x
    x = 257,539.31/573.85
  6. Step 6: Final answer
    x = 448.79

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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.