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Finding the Fourth Proportional to 201.06, 276.90 and 190.63

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Solution

The fourth proportional to 201.06, 276.90 and 190.63 is: 262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.06 : 276.90 = 190.63 : x
  2. Step 2: Convert to fraction form
    201.06/276.90 = 190.63/x
  3. Step 3: Cross multiply
    201.06x = 276.90 × 190.63
  4. Step 4: Simplify right side
    201.06x = 52,785.45
  5. Step 5: Solve for x
    x = 52,785.45/201.06
  6. Step 6: Final answer
    x = 262.54

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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.