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Finding the Fourth Proportional to 227.68, 313.96 and 162.16

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Solution

The fourth proportional to 227.68, 313.96 and 162.16 is: 223.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.68 : 313.96 = 162.16 : x
  2. Step 2: Convert to fraction form
    227.68/313.96 = 162.16/x
  3. Step 3: Cross multiply
    227.68x = 313.96 × 162.16
  4. Step 4: Simplify right side
    227.68x = 50,911.75
  5. Step 5: Solve for x
    x = 50,911.75/227.68
  6. Step 6: Final answer
    x = 223.61

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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.