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Finding the Fourth Proportional to 351.44, 481.44 and 347.49

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Solution

The fourth proportional to 351.44, 481.44 and 347.49 is: 476.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.44 : 481.44 = 347.49 : x
  2. Step 2: Convert to fraction form
    351.44/481.44 = 347.49/x
  3. Step 3: Cross multiply
    351.44x = 481.44 × 347.49
  4. Step 4: Simplify right side
    351.44x = 167,296.89
  5. Step 5: Solve for x
    x = 167,296.89/351.44
  6. Step 6: Final answer
    x = 476.03

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.