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Finding the Fourth Proportional to 237.20, 353.86 and 235.60

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Solution

The fourth proportional to 237.20, 353.86 and 235.60 is: 351.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.20 : 353.86 = 235.60 : x
  2. Step 2: Convert to fraction form
    237.20/353.86 = 235.60/x
  3. Step 3: Cross multiply
    237.20x = 353.86 × 235.60
  4. Step 4: Simplify right side
    237.20x = 83,369.42
  5. Step 5: Solve for x
    x = 83,369.42/237.20
  6. Step 6: Final answer
    x = 351.47

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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.