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Finding the Fourth Proportional to 201.87, 301.35 and 193.77

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Solution

The fourth proportional to 201.87, 301.35 and 193.77 is: 289.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.87 : 301.35 = 193.77 : x
  2. Step 2: Convert to fraction form
    201.87/301.35 = 193.77/x
  3. Step 3: Cross multiply
    201.87x = 301.35 × 193.77
  4. Step 4: Simplify right side
    201.87x = 58,393.07
  5. Step 5: Solve for x
    x = 58,393.07/201.87
  6. Step 6: Final answer
    x = 289.26

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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.