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Finding the Fourth Proportional to 447.22, 617.44 and 292.24

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Solution

The fourth proportional to 447.22, 617.44 and 292.24 is: 403.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.22 : 617.44 = 292.24 : x
  2. Step 2: Convert to fraction form
    447.22/617.44 = 292.24/x
  3. Step 3: Cross multiply
    447.22x = 617.44 × 292.24
  4. Step 4: Simplify right side
    447.22x = 180,439.20
  5. Step 5: Solve for x
    x = 180,439.20/447.22
  6. Step 6: Final answer
    x = 403.47

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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.