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Finding the Fourth Proportional to 267.15, 371.18 and 263.81

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Solution

The fourth proportional to 267.15, 371.18 and 263.81 is: 366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.15 : 371.18 = 263.81 : x
  2. Step 2: Convert to fraction form
    267.15/371.18 = 263.81/x
  3. Step 3: Cross multiply
    267.15x = 371.18 × 263.81
  4. Step 4: Simplify right side
    267.15x = 97,920.50
  5. Step 5: Solve for x
    x = 97,920.50/267.15
  6. Step 6: Final answer
    x = 366.54

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.