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Finding the Fourth Proportional to 366.32, 548.26 and 274.80

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Solution

The fourth proportional to 366.32, 548.26 and 274.80 is: 411.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.32 : 548.26 = 274.80 : x
  2. Step 2: Convert to fraction form
    366.32/548.26 = 274.80/x
  3. Step 3: Cross multiply
    366.32x = 548.26 × 274.80
  4. Step 4: Simplify right side
    366.32x = 150,661.85
  5. Step 5: Solve for x
    x = 150,661.85/366.32
  6. Step 6: Final answer
    x = 411.28

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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.