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Finding the Fourth Proportional to 531.32, 796.21 and 377.55

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Solution

The fourth proportional to 531.32, 796.21 and 377.55 is: 565.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.32 : 796.21 = 377.55 : x
  2. Step 2: Convert to fraction form
    531.32/796.21 = 377.55/x
  3. Step 3: Cross multiply
    531.32x = 796.21 × 377.55
  4. Step 4: Simplify right side
    531.32x = 300,609.09
  5. Step 5: Solve for x
    x = 300,609.09/531.32
  6. Step 6: Final answer
    x = 565.78

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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.