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Finding the Fourth Proportional to 884.51, 1,326.80 and 235.22

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Solution

The fourth proportional to 884.51, 1,326.80 and 235.22 is: 352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.51 : 1,326.80 = 235.22 : x
  2. Step 2: Convert to fraction form
    884.51/1,326.80 = 235.22/x
  3. Step 3: Cross multiply
    884.51x = 1,326.80 × 235.22
  4. Step 4: Simplify right side
    884.51x = 312,093.80
  5. Step 5: Solve for x
    x = 312,093.80/884.51
  6. Step 6: Final answer
    x = 352.85

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Double scale
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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.