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Finding the Fourth Proportional to 203.48, 282.75 and 201.37

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Solution

The fourth proportional to 203.48, 282.75 and 201.37 is: 279.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.48 : 282.75 = 201.37 : x
  2. Step 2: Convert to fraction form
    203.48/282.75 = 201.37/x
  3. Step 3: Cross multiply
    203.48x = 282.75 × 201.37
  4. Step 4: Simplify right side
    203.48x = 56,935.81
  5. Step 5: Solve for x
    x = 56,935.81/203.48
  6. Step 6: Final answer
    x = 279.81

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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.