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Finding the Fourth Proportional to 201.03, 278.08 and 187.97

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Solution

The fourth proportional to 201.03, 278.08 and 187.97 is: 260.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.03 : 278.08 = 187.97 : x
  2. Step 2: Convert to fraction form
    201.03/278.08 = 187.97/x
  3. Step 3: Cross multiply
    201.03x = 278.08 × 187.97
  4. Step 4: Simplify right side
    201.03x = 52,270.70
  5. Step 5: Solve for x
    x = 52,270.70/201.03
  6. Step 6: Final answer
    x = 260.01

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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.