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Finding the Fourth Proportional to 270.09, 375.37 and 267.21

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Solution

The fourth proportional to 270.09, 375.37 and 267.21 is: 371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.09 : 375.37 = 267.21 : x
  2. Step 2: Convert to fraction form
    270.09/375.37 = 267.21/x
  3. Step 3: Cross multiply
    270.09x = 375.37 × 267.21
  4. Step 4: Simplify right side
    270.09x = 100,302.62
  5. Step 5: Solve for x
    x = 100,302.62/270.09
  6. Step 6: Final answer
    x = 371.37

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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.