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Finding the Fourth Proportional to 348.77, 481.34 and 261.29

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Solution

The fourth proportional to 348.77, 481.34 and 261.29 is: 360.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.77 : 481.34 = 261.29 : x
  2. Step 2: Convert to fraction form
    348.77/481.34 = 261.29/x
  3. Step 3: Cross multiply
    348.77x = 481.34 × 261.29
  4. Step 4: Simplify right side
    348.77x = 125,771.19
  5. Step 5: Solve for x
    x = 125,771.19/348.77
  6. Step 6: Final answer
    x = 360.61

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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.