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Finding the Fourth Proportional to 349.09, 481.72 and 201.73

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Solution

The fourth proportional to 349.09, 481.72 and 201.73 is: 278.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.09 : 481.72 = 201.73 : x
  2. Step 2: Convert to fraction form
    349.09/481.72 = 201.73/x
  3. Step 3: Cross multiply
    349.09x = 481.72 × 201.73
  4. Step 4: Simplify right side
    349.09x = 97,177.38
  5. Step 5: Solve for x
    x = 97,177.38/349.09
  6. Step 6: Final answer
    x = 278.37

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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.