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Finding the Fourth Proportional to 349.34, 481.50 and 261.86

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Solution

The fourth proportional to 349.34, 481.50 and 261.86 is: 360.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.34 : 481.50 = 261.86 : x
  2. Step 2: Convert to fraction form
    349.34/481.50 = 261.86/x
  3. Step 3: Cross multiply
    349.34x = 481.50 × 261.86
  4. Step 4: Simplify right side
    349.34x = 126,083.18
  5. Step 5: Solve for x
    x = 126,083.18/349.34
  6. Step 6: Final answer
    x = 360.92

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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.