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Finding the Fourth Proportional to 528.41, 791.92 and 236

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Solution

The fourth proportional to 528.41, 791.92 and 236 is: 353.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.41 : 791.92 = 236 : x
  2. Step 2: Convert to fraction form
    528.41/791.92 = 236/x
  3. Step 3: Cross multiply
    528.41x = 791.92 × 236
  4. Step 4: Simplify right side
    528.41x = 186,893.12
  5. Step 5: Solve for x
    x = 186,893.12/528.41
  6. Step 6: Final answer
    x = 353.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.