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Finding the Fourth Proportional to 274.91, 412.37 and 223.31

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Solution

The fourth proportional to 274.91, 412.37 and 223.31 is: 334.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.91 : 412.37 = 223.31 : x
  2. Step 2: Convert to fraction form
    274.91/412.37 = 223.31/x
  3. Step 3: Cross multiply
    274.91x = 412.37 × 223.31
  4. Step 4: Simplify right side
    274.91x = 92,085.55
  5. Step 5: Solve for x
    x = 92,085.55/274.91
  6. Step 6: Final answer
    x = 334.96

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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.