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Finding the Fourth Proportional to 366.42, 549.64 and 122.96

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Solution

The fourth proportional to 366.42, 549.64 and 122.96 is: 184.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.42 : 549.64 = 122.96 : x
  2. Step 2: Convert to fraction form
    366.42/549.64 = 122.96/x
  3. Step 3: Cross multiply
    366.42x = 549.64 × 122.96
  4. Step 4: Simplify right side
    366.42x = 67,583.73
  5. Step 5: Solve for x
    x = 67,583.73/366.42
  6. Step 6: Final answer
    x = 184.44

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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.