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Finding the Fourth Proportional to 351.44, 484.72 and 234.80

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Solution

The fourth proportional to 351.44, 484.72 and 234.80 is: 323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.44 : 484.72 = 234.80 : x
  2. Step 2: Convert to fraction form
    351.44/484.72 = 234.80/x
  3. Step 3: Cross multiply
    351.44x = 484.72 × 234.80
  4. Step 4: Simplify right side
    351.44x = 113,812.26
  5. Step 5: Solve for x
    x = 113,812.26/351.44
  6. Step 6: Final answer
    x = 323.85

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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.