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Finding the Fourth Proportional to 372.52, 515.46 and 323.56

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Solution

The fourth proportional to 372.52, 515.46 and 323.56 is: 447.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.52 : 515.46 = 323.56 : x
  2. Step 2: Convert to fraction form
    372.52/515.46 = 323.56/x
  3. Step 3: Cross multiply
    372.52x = 515.46 × 323.56
  4. Step 4: Simplify right side
    372.52x = 166,782.24
  5. Step 5: Solve for x
    x = 166,782.24/372.52
  6. Step 6: Final answer
    x = 447.71

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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.