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Finding the Fourth Proportional to 203.26, 303.42 and 189.60

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Solution

The fourth proportional to 203.26, 303.42 and 189.60 is: 283.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.26 : 303.42 = 189.60 : x
  2. Step 2: Convert to fraction form
    203.26/303.42 = 189.60/x
  3. Step 3: Cross multiply
    203.26x = 303.42 × 189.60
  4. Step 4: Simplify right side
    203.26x = 57,528.43
  5. Step 5: Solve for x
    x = 57,528.43/203.26
  6. Step 6: Final answer
    x = 283.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.