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Finding the Fourth Proportional to 363.38, 501.47 and 208.13

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Solution

The fourth proportional to 363.38, 501.47 and 208.13 is: 287.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.38 : 501.47 = 208.13 : x
  2. Step 2: Convert to fraction form
    363.38/501.47 = 208.13/x
  3. Step 3: Cross multiply
    363.38x = 501.47 × 208.13
  4. Step 4: Simplify right side
    363.38x = 104,367.40
  5. Step 5: Solve for x
    x = 104,367.40/363.38
  6. Step 6: Final answer
    x = 287.22

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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.