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Finding the Fourth Proportional to 134.98, 201.17 and 134.80

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Solution

The fourth proportional to 134.98, 201.17 and 134.80 is: 200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.98 : 201.17 = 134.80 : x
  2. Step 2: Convert to fraction form
    134.98/201.17 = 134.80/x
  3. Step 3: Cross multiply
    134.98x = 201.17 × 134.80
  4. Step 4: Simplify right side
    134.98x = 27,117.72
  5. Step 5: Solve for x
    x = 27,117.72/134.98
  6. Step 6: Final answer
    x = 200.90

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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.