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Finding the Fourth Proportional to 349.07, 481.52 and 261.59

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Solution

The fourth proportional to 349.07, 481.52 and 261.59 is: 360.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.07 : 481.52 = 261.59 : x
  2. Step 2: Convert to fraction form
    349.07/481.52 = 261.59/x
  3. Step 3: Cross multiply
    349.07x = 481.52 × 261.59
  4. Step 4: Simplify right side
    349.07x = 125,959.06
  5. Step 5: Solve for x
    x = 125,959.06/349.07
  6. Step 6: Final answer
    x = 360.85

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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.