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Finding the Fourth Proportional to 366.30, 548.97 and 280.38

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Solution

The fourth proportional to 366.30, 548.97 and 280.38 is: 420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.30 : 548.97 = 280.38 : x
  2. Step 2: Convert to fraction form
    366.30/548.97 = 280.38/x
  3. Step 3: Cross multiply
    366.30x = 548.97 × 280.38
  4. Step 4: Simplify right side
    366.30x = 153,920.21
  5. Step 5: Solve for x
    x = 153,920.21/366.30
  6. Step 6: Final answer
    x = 420.20

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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.