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Finding the Fourth Proportional to 366.33, 551.57 and 323.28

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Solution

The fourth proportional to 366.33, 551.57 and 323.28 is: 486.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.33 : 551.57 = 323.28 : x
  2. Step 2: Convert to fraction form
    366.33/551.57 = 323.28/x
  3. Step 3: Cross multiply
    366.33x = 551.57 × 323.28
  4. Step 4: Simplify right side
    366.33x = 178,311.55
  5. Step 5: Solve for x
    x = 178,311.55/366.33
  6. Step 6: Final answer
    x = 486.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.