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Finding the Fourth Proportional to 364.23, 502.92 and 285.75

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Solution

The fourth proportional to 364.23, 502.92 and 285.75 is: 394.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.23 : 502.92 = 285.75 : x
  2. Step 2: Convert to fraction form
    364.23/502.92 = 285.75/x
  3. Step 3: Cross multiply
    364.23x = 502.92 × 285.75
  4. Step 4: Simplify right side
    364.23x = 143,709.39
  5. Step 5: Solve for x
    x = 143,709.39/364.23
  6. Step 6: Final answer
    x = 394.56

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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.