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Finding the Fourth Proportional to 234.48, 353.36 and 219.60

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Solution

The fourth proportional to 234.48, 353.36 and 219.60 is: 330.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.48 : 353.36 = 219.60 : x
  2. Step 2: Convert to fraction form
    234.48/353.36 = 219.60/x
  3. Step 3: Cross multiply
    234.48x = 353.36 × 219.60
  4. Step 4: Simplify right side
    234.48x = 77,597.86
  5. Step 5: Solve for x
    x = 77,597.86/234.48
  6. Step 6: Final answer
    x = 330.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.