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Finding the Fourth Proportional to 267.76, 403.54 and 265.33

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Solution

The fourth proportional to 267.76, 403.54 and 265.33 is: 399.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.76 : 403.54 = 265.33 : x
  2. Step 2: Convert to fraction form
    267.76/403.54 = 265.33/x
  3. Step 3: Cross multiply
    267.76x = 403.54 × 265.33
  4. Step 4: Simplify right side
    267.76x = 107,071.27
  5. Step 5: Solve for x
    x = 107,071.27/267.76
  6. Step 6: Final answer
    x = 399.88

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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.