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Finding the Fourth Proportional to 237.14, 353.28 and 228.43

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Solution

The fourth proportional to 237.14, 353.28 and 228.43 is: 340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.14 : 353.28 = 228.43 : x
  2. Step 2: Convert to fraction form
    237.14/353.28 = 228.43/x
  3. Step 3: Cross multiply
    237.14x = 353.28 × 228.43
  4. Step 4: Simplify right side
    237.14x = 80,699.75
  5. Step 5: Solve for x
    x = 80,699.75/237.14
  6. Step 6: Final answer
    x = 340.30

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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.