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Finding the Fourth Proportional to 383.38, 528.96 and 235.96

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Solution

The fourth proportional to 383.38, 528.96 and 235.96 is: 325.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.38 : 528.96 = 235.96 : x
  2. Step 2: Convert to fraction form
    383.38/528.96 = 235.96/x
  3. Step 3: Cross multiply
    383.38x = 528.96 × 235.96
  4. Step 4: Simplify right side
    383.38x = 124,813.40
  5. Step 5: Solve for x
    x = 124,813.40/383.38
  6. Step 6: Final answer
    x = 325.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.