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Finding the Fourth Proportional to 441.37, 660.40 and 274.65

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Solution

The fourth proportional to 441.37, 660.40 and 274.65 is: 410.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.37 : 660.40 = 274.65 : x
  2. Step 2: Convert to fraction form
    441.37/660.40 = 274.65/x
  3. Step 3: Cross multiply
    441.37x = 660.40 × 274.65
  4. Step 4: Simplify right side
    441.37x = 181,377.24
  5. Step 5: Solve for x
    x = 181,377.24/441.37
  6. Step 6: Final answer
    x = 410.94

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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.