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Finding the Fourth Proportional to 441.75, 663.09 and 305.37

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Solution

The fourth proportional to 441.75, 663.09 and 305.37 is: 458.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.75 : 663.09 = 305.37 : x
  2. Step 2: Convert to fraction form
    441.75/663.09 = 305.37/x
  3. Step 3: Cross multiply
    441.75x = 663.09 × 305.37
  4. Step 4: Simplify right side
    441.75x = 202,486.65
  5. Step 5: Solve for x
    x = 202,486.65/441.75
  6. Step 6: Final answer
    x = 458.37

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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.