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Finding the Fourth Proportional to 222.14, 306.44 and 147.53

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Solution

The fourth proportional to 222.14, 306.44 and 147.53 is: 203.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.14 : 306.44 = 147.53 : x
  2. Step 2: Convert to fraction form
    222.14/306.44 = 147.53/x
  3. Step 3: Cross multiply
    222.14x = 306.44 × 147.53
  4. Step 4: Simplify right side
    222.14x = 45,209.09
  5. Step 5: Solve for x
    x = 45,209.09/222.14
  6. Step 6: Final answer
    x = 203.52

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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.