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Finding the Fourth Proportional to 372.42, 513.81 and 224.94

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Solution

The fourth proportional to 372.42, 513.81 and 224.94 is: 310.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.42 : 513.81 = 224.94 : x
  2. Step 2: Convert to fraction form
    372.42/513.81 = 224.94/x
  3. Step 3: Cross multiply
    372.42x = 513.81 × 224.94
  4. Step 4: Simplify right side
    372.42x = 115,576.42
  5. Step 5: Solve for x
    x = 115,576.42/372.42
  6. Step 6: Final answer
    x = 310.34

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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.