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Finding the Fourth Proportional to 398.83, 550.40 and 241.46

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Solution

The fourth proportional to 398.83, 550.40 and 241.46 is: 333.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398.83 : 550.40 = 241.46 : x
  2. Step 2: Convert to fraction form
    398.83/550.40 = 241.46/x
  3. Step 3: Cross multiply
    398.83x = 550.40 × 241.46
  4. Step 4: Simplify right side
    398.83x = 132,899.58
  5. Step 5: Solve for x
    x = 132,899.58/398.83
  6. Step 6: Final answer
    x = 333.22

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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.