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Finding the Fourth Proportional to 443.62, 664.71 and 335.26

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Solution

The fourth proportional to 443.62, 664.71 and 335.26 is: 502.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.62 : 664.71 = 335.26 : x
  2. Step 2: Convert to fraction form
    443.62/664.71 = 335.26/x
  3. Step 3: Cross multiply
    443.62x = 664.71 × 335.26
  4. Step 4: Simplify right side
    443.62x = 222,850.67
  5. Step 5: Solve for x
    x = 222,850.67/443.62
  6. Step 6: Final answer
    x = 502.35

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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.