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Finding the Fourth Proportional to 447.13, 668.14 and 335.22

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Solution

The fourth proportional to 447.13, 668.14 and 335.22 is: 500.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.13 : 668.14 = 335.22 : x
  2. Step 2: Convert to fraction form
    447.13/668.14 = 335.22/x
  3. Step 3: Cross multiply
    447.13x = 668.14 × 335.22
  4. Step 4: Simplify right side
    447.13x = 223,970.55
  5. Step 5: Solve for x
    x = 223,970.55/447.13
  6. Step 6: Final answer
    x = 500.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.