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Finding the Fourth Proportional to 227.95, 314.69 and 161.62

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Solution

The fourth proportional to 227.95, 314.69 and 161.62 is: 223.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.95 : 314.69 = 161.62 : x
  2. Step 2: Convert to fraction form
    227.95/314.69 = 161.62/x
  3. Step 3: Cross multiply
    227.95x = 314.69 × 161.62
  4. Step 4: Simplify right side
    227.95x = 50,858.60
  5. Step 5: Solve for x
    x = 50,858.60/227.95
  6. Step 6: Final answer
    x = 223.12

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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.