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Finding the Fourth Proportional to 272.62, 407.33 and 267.52

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Solution

The fourth proportional to 272.62, 407.33 and 267.52 is: 399.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.62 : 407.33 = 267.52 : x
  2. Step 2: Convert to fraction form
    272.62/407.33 = 267.52/x
  3. Step 3: Cross multiply
    272.62x = 407.33 × 267.52
  4. Step 4: Simplify right side
    272.62x = 108,968.92
  5. Step 5: Solve for x
    x = 108,968.92/272.62
  6. Step 6: Final answer
    x = 399.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.