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Finding the Fourth Proportional to 372.24, 559.48 and 344.72

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Solution

The fourth proportional to 372.24, 559.48 and 344.72 is: 518.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.24 : 559.48 = 344.72 : x
  2. Step 2: Convert to fraction form
    372.24/559.48 = 344.72/x
  3. Step 3: Cross multiply
    372.24x = 559.48 × 344.72
  4. Step 4: Simplify right side
    372.24x = 192,863.95
  5. Step 5: Solve for x
    x = 192,863.95/372.24
  6. Step 6: Final answer
    x = 518.12

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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.