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Finding the Fourth Proportional to 576.23, 863.19 and 267.67

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Solution

The fourth proportional to 576.23, 863.19 and 267.67 is: 400.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.23 : 863.19 = 267.67 : x
  2. Step 2: Convert to fraction form
    576.23/863.19 = 267.67/x
  3. Step 3: Cross multiply
    576.23x = 863.19 × 267.67
  4. Step 4: Simplify right side
    576.23x = 231,045.75
  5. Step 5: Solve for x
    x = 231,045.75/576.23
  6. Step 6: Final answer
    x = 400.96

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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.