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Finding the Fourth Proportional to 203.88, 283.35 and 201.72

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Solution

The fourth proportional to 203.88, 283.35 and 201.72 is: 280.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.88 : 283.35 = 201.72 : x
  2. Step 2: Convert to fraction form
    203.88/283.35 = 201.72/x
  3. Step 3: Cross multiply
    203.88x = 283.35 × 201.72
  4. Step 4: Simplify right side
    203.88x = 57,157.36
  5. Step 5: Solve for x
    x = 57,157.36/203.88
  6. Step 6: Final answer
    x = 280.35

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.