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Finding the Fourth Proportional to 364.23, 502.38 and 216.75

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Solution

The fourth proportional to 364.23, 502.38 and 216.75 is: 298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.23 : 502.38 = 216.75 : x
  2. Step 2: Convert to fraction form
    364.23/502.38 = 216.75/x
  3. Step 3: Cross multiply
    364.23x = 502.38 × 216.75
  4. Step 4: Simplify right side
    364.23x = 108,890.87
  5. Step 5: Solve for x
    x = 108,890.87/364.23
  6. Step 6: Final answer
    x = 298.96

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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.