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Finding the Fourth Proportional to 236.71, 352.28 and 228.07

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Solution

The fourth proportional to 236.71, 352.28 and 228.07 is: 339.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.71 : 352.28 = 228.07 : x
  2. Step 2: Convert to fraction form
    236.71/352.28 = 228.07/x
  3. Step 3: Cross multiply
    236.71x = 352.28 × 228.07
  4. Step 4: Simplify right side
    236.71x = 80,344.50
  5. Step 5: Solve for x
    x = 80,344.50/236.71
  6. Step 6: Final answer
    x = 339.42

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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.