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Finding the Fourth Proportional to 364.25, 502.66 and 216.89

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Solution

The fourth proportional to 364.25, 502.66 and 216.89 is: 299.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.25 : 502.66 = 216.89 : x
  2. Step 2: Convert to fraction form
    364.25/502.66 = 216.89/x
  3. Step 3: Cross multiply
    364.25x = 502.66 × 216.89
  4. Step 4: Simplify right side
    364.25x = 109,021.93
  5. Step 5: Solve for x
    x = 109,021.93/364.25
  6. Step 6: Final answer
    x = 299.31

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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.