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Finding the Fourth Proportional to 383.11, 573.73 and 236.93

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Solution

The fourth proportional to 383.11, 573.73 and 236.93 is: 354.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.11 : 573.73 = 236.93 : x
  2. Step 2: Convert to fraction form
    383.11/573.73 = 236.93/x
  3. Step 3: Cross multiply
    383.11x = 573.73 × 236.93
  4. Step 4: Simplify right side
    383.11x = 135,933.85
  5. Step 5: Solve for x
    x = 135,933.85/383.11
  6. Step 6: Final answer
    x = 354.82

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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.