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Finding the Fourth Proportional to 351.62, 484.96 and 328.04

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Solution

The fourth proportional to 351.62, 484.96 and 328.04 is: 452.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.62 : 484.96 = 328.04 : x
  2. Step 2: Convert to fraction form
    351.62/484.96 = 328.04/x
  3. Step 3: Cross multiply
    351.62x = 484.96 × 328.04
  4. Step 4: Simplify right side
    351.62x = 159,086.72
  5. Step 5: Solve for x
    x = 159,086.72/351.62
  6. Step 6: Final answer
    x = 452.44

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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.