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Finding the Fourth Proportional to 236.96, 352.64 and 228.32

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Solution

The fourth proportional to 236.96, 352.64 and 228.32 is: 339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.96 : 352.64 = 228.32 : x
  2. Step 2: Convert to fraction form
    236.96/352.64 = 228.32/x
  3. Step 3: Cross multiply
    236.96x = 352.64 × 228.32
  4. Step 4: Simplify right side
    236.96x = 80,513.62
  5. Step 5: Solve for x
    x = 80,513.62/236.96
  6. Step 6: Final answer
    x = 339.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.