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Finding the Fourth Proportional to 445.09, 667.03 and 250.19

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Solution

The fourth proportional to 445.09, 667.03 and 250.19 is: 374.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.09 : 667.03 = 250.19 : x
  2. Step 2: Convert to fraction form
    445.09/667.03 = 250.19/x
  3. Step 3: Cross multiply
    445.09x = 667.03 × 250.19
  4. Step 4: Simplify right side
    445.09x = 166,879.65
  5. Step 5: Solve for x
    x = 166,879.65/445.09
  6. Step 6: Final answer
    x = 374.93

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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.