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Finding the Fourth Proportional to 366.11, 548.98 and 122.55

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Solution

The fourth proportional to 366.11, 548.98 and 122.55 is: 183.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.11 : 548.98 = 122.55 : x
  2. Step 2: Convert to fraction form
    366.11/548.98 = 122.55/x
  3. Step 3: Cross multiply
    366.11x = 548.98 × 122.55
  4. Step 4: Simplify right side
    366.11x = 67,277.50
  5. Step 5: Solve for x
    x = 67,277.50/366.11
  6. Step 6: Final answer
    x = 183.76

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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.