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Finding the Fourth Proportional to 531.90, 796.49 and 325.85

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Solution

The fourth proportional to 531.90, 796.49 and 325.85 is: 487.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.90 : 796.49 = 325.85 : x
  2. Step 2: Convert to fraction form
    531.90/796.49 = 325.85/x
  3. Step 3: Cross multiply
    531.90x = 796.49 × 325.85
  4. Step 4: Simplify right side
    531.90x = 259,530.65
  5. Step 5: Solve for x
    x = 259,530.65/531.90
  6. Step 6: Final answer
    x = 487.93

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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.