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Finding the Fourth Proportional to 531.26, 800.49 and 441.95

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Solution

The fourth proportional to 531.26, 800.49 and 441.95 is: 665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.26 : 800.49 = 441.95 : x
  2. Step 2: Convert to fraction form
    531.26/800.49 = 441.95/x
  3. Step 3: Cross multiply
    531.26x = 800.49 × 441.95
  4. Step 4: Simplify right side
    531.26x = 353,776.56
  5. Step 5: Solve for x
    x = 353,776.56/531.26
  6. Step 6: Final answer
    x = 665.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.