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Finding the Fourth Proportional to 267.55, 403.37 and 264.09

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Solution

The fourth proportional to 267.55, 403.37 and 264.09 is: 398.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.55 : 403.37 = 264.09 : x
  2. Step 2: Convert to fraction form
    267.55/403.37 = 264.09/x
  3. Step 3: Cross multiply
    267.55x = 403.37 × 264.09
  4. Step 4: Simplify right side
    267.55x = 106,525.98
  5. Step 5: Solve for x
    x = 106,525.98/267.55
  6. Step 6: Final answer
    x = 398.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.