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Finding the Fourth Proportional to 383.97, 576.20 and 152.82

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Solution

The fourth proportional to 383.97, 576.20 and 152.82 is: 229.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.97 : 576.20 = 152.82 : x
  2. Step 2: Convert to fraction form
    383.97/576.20 = 152.82/x
  3. Step 3: Cross multiply
    383.97x = 576.20 × 152.82
  4. Step 4: Simplify right side
    383.97x = 88,054.88
  5. Step 5: Solve for x
    x = 88,054.88/383.97
  6. Step 6: Final answer
    x = 229.33

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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.