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Finding the Fourth Proportional to 144.34, 198.84 and 134.22

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Solution

The fourth proportional to 144.34, 198.84 and 134.22 is: 184.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.34 : 198.84 = 134.22 : x
  2. Step 2: Convert to fraction form
    144.34/198.84 = 134.22/x
  3. Step 3: Cross multiply
    144.34x = 198.84 × 134.22
  4. Step 4: Simplify right side
    144.34x = 26,688.30
  5. Step 5: Solve for x
    x = 26,688.30/144.34
  6. Step 6: Final answer
    x = 184.90

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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.