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Finding the Fourth Proportional to 884.43, 1,326.53 and 235.21

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Solution

The fourth proportional to 884.43, 1,326.53 and 235.21 is: 352.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.43 : 1,326.53 = 235.21 : x
  2. Step 2: Convert to fraction form
    884.43/1,326.53 = 235.21/x
  3. Step 3: Cross multiply
    884.43x = 1,326.53 × 235.21
  4. Step 4: Simplify right side
    884.43x = 312,013.12
  5. Step 5: Solve for x
    x = 312,013.12/884.43
  6. Step 6: Final answer
    x = 352.78

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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.