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Finding the Fourth Proportional to 363.44, 501.61 and 208.19

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Solution

The fourth proportional to 363.44, 501.61 and 208.19 is: 287.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.44 : 501.61 = 208.19 : x
  2. Step 2: Convert to fraction form
    363.44/501.61 = 208.19/x
  3. Step 3: Cross multiply
    363.44x = 501.61 × 208.19
  4. Step 4: Simplify right side
    363.44x = 104,429.45
  5. Step 5: Solve for x
    x = 104,429.45/363.44
  6. Step 6: Final answer
    x = 287.34

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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.