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Finding the Fourth Proportional to 341.69, 471.21 and 267.87

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Solution

The fourth proportional to 341.69, 471.21 and 267.87 is: 369.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.69 : 471.21 = 267.87 : x
  2. Step 2: Convert to fraction form
    341.69/471.21 = 267.87/x
  3. Step 3: Cross multiply
    341.69x = 471.21 × 267.87
  4. Step 4: Simplify right side
    341.69x = 126,223.02
  5. Step 5: Solve for x
    x = 126,223.02/341.69
  6. Step 6: Final answer
    x = 369.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.