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Finding the Fourth Proportional to 323, 484.16 and 149.54

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Solution

The fourth proportional to 323, 484.16 and 149.54 is: 224.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    323 : 484.16 = 149.54 : x
  2. Step 2: Convert to fraction form
    323/484.16 = 149.54/x
  3. Step 3: Cross multiply
    323x = 484.16 × 149.54
  4. Step 4: Simplify right side
    323x = 72,401.29
  5. Step 5: Solve for x
    x = 72,401.29/323
  6. Step 6: Final answer
    x = 224.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.