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Finding the Fourth Proportional to 274.45, 411.87 and 183.32

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Solution

The fourth proportional to 274.45, 411.87 and 183.32 is: 275.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.45 : 411.87 = 183.32 : x
  2. Step 2: Convert to fraction form
    274.45/411.87 = 183.32/x
  3. Step 3: Cross multiply
    274.45x = 411.87 × 183.32
  4. Step 4: Simplify right side
    274.45x = 75,504.01
  5. Step 5: Solve for x
    x = 75,504.01/274.45
  6. Step 6: Final answer
    x = 275.11

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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.