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Finding the Fourth Proportional to 383.70, 575.63 and 229.44

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Solution

The fourth proportional to 383.70, 575.63 and 229.44 is: 344.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.70 : 575.63 = 229.44 : x
  2. Step 2: Convert to fraction form
    383.70/575.63 = 229.44/x
  3. Step 3: Cross multiply
    383.70x = 575.63 × 229.44
  4. Step 4: Simplify right side
    383.70x = 132,072.55
  5. Step 5: Solve for x
    x = 132,072.55/383.70
  6. Step 6: Final answer
    x = 344.21

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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.