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Finding the Fourth Proportional to 279.32, 383.36 and 267.44

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Solution

The fourth proportional to 279.32, 383.36 and 267.44 is: 367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279.32 : 383.36 = 267.44 : x
  2. Step 2: Convert to fraction form
    279.32/383.36 = 267.44/x
  3. Step 3: Cross multiply
    279.32x = 383.36 × 267.44
  4. Step 4: Simplify right side
    279.32x = 102,522.54
  5. Step 5: Solve for x
    x = 102,522.54/279.32
  6. Step 6: Final answer
    x = 367.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.