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Finding the Fourth Proportional to 441.11, 609.26 and 331.07

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Solution

The fourth proportional to 441.11, 609.26 and 331.07 is: 457.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.11 : 609.26 = 331.07 : x
  2. Step 2: Convert to fraction form
    441.11/609.26 = 331.07/x
  3. Step 3: Cross multiply
    441.11x = 609.26 × 331.07
  4. Step 4: Simplify right side
    441.11x = 201,703.01
  5. Step 5: Solve for x
    x = 201,703.01/441.11
  6. Step 6: Final answer
    x = 457.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.