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Finding the Fourth Proportional to 363.63, 501.87 and 216.31

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Solution

The fourth proportional to 363.63, 501.87 and 216.31 is: 298.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.63 : 501.87 = 216.31 : x
  2. Step 2: Convert to fraction form
    363.63/501.87 = 216.31/x
  3. Step 3: Cross multiply
    363.63x = 501.87 × 216.31
  4. Step 4: Simplify right side
    363.63x = 108,559.50
  5. Step 5: Solve for x
    x = 108,559.50/363.63
  6. Step 6: Final answer
    x = 298.54

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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.