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Finding the Fourth Proportional to 365.40, 547.92 and 134.12

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Solution

The fourth proportional to 365.40, 547.92 and 134.12 is: 201.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.40 : 547.92 = 134.12 : x
  2. Step 2: Convert to fraction form
    365.40/547.92 = 134.12/x
  3. Step 3: Cross multiply
    365.40x = 547.92 × 134.12
  4. Step 4: Simplify right side
    365.40x = 73,487.03
  5. Step 5: Solve for x
    x = 73,487.03/365.40
  6. Step 6: Final answer
    x = 201.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.