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Finding the Fourth Proportional to 222.53, 306.72 and 160.27

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Solution

The fourth proportional to 222.53, 306.72 and 160.27 is: 220.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.53 : 306.72 = 160.27 : x
  2. Step 2: Convert to fraction form
    222.53/306.72 = 160.27/x
  3. Step 3: Cross multiply
    222.53x = 306.72 × 160.27
  4. Step 4: Simplify right side
    222.53x = 49,157.25
  5. Step 5: Solve for x
    x = 49,157.25/222.53
  6. Step 6: Final answer
    x = 220.91

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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.