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Finding the Fourth Proportional to 348.84, 481.56 and 255.59

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Solution

The fourth proportional to 348.84, 481.56 and 255.59 is: 352.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.84 : 481.56 = 255.59 : x
  2. Step 2: Convert to fraction form
    348.84/481.56 = 255.59/x
  3. Step 3: Cross multiply
    348.84x = 481.56 × 255.59
  4. Step 4: Simplify right side
    348.84x = 123,080.36
  5. Step 5: Solve for x
    x = 123,080.36/348.84
  6. Step 6: Final answer
    x = 352.83

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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.