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Finding the Fourth Proportional to 366.12, 548.85 and 134.85

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Solution

The fourth proportional to 366.12, 548.85 and 134.85 is: 202.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.12 : 548.85 = 134.85 : x
  2. Step 2: Convert to fraction form
    366.12/548.85 = 134.85/x
  3. Step 3: Cross multiply
    366.12x = 548.85 × 134.85
  4. Step 4: Simplify right side
    366.12x = 74,012.42
  5. Step 5: Solve for x
    x = 74,012.42/366.12
  6. Step 6: Final answer
    x = 202.15

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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.