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Finding the Fourth Proportional to 234.86, 324.12 and 227.30

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Solution

The fourth proportional to 234.86, 324.12 and 227.30 is: 313.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.86 : 324.12 = 227.30 : x
  2. Step 2: Convert to fraction form
    234.86/324.12 = 227.30/x
  3. Step 3: Cross multiply
    234.86x = 324.12 × 227.30
  4. Step 4: Simplify right side
    234.86x = 73,672.48
  5. Step 5: Solve for x
    x = 73,672.48/234.86
  6. Step 6: Final answer
    x = 313.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.