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Finding the Fourth Proportional to 447.96, 617.26 and 360.28

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Solution

The fourth proportional to 447.96, 617.26 and 360.28 is: 496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.96 : 617.26 = 360.28 : x
  2. Step 2: Convert to fraction form
    447.96/617.26 = 360.28/x
  3. Step 3: Cross multiply
    447.96x = 617.26 × 360.28
  4. Step 4: Simplify right side
    447.96x = 222,386.43
  5. Step 5: Solve for x
    x = 222,386.43/447.96
  6. Step 6: Final answer
    x = 496.44

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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.