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Finding the Fourth Proportional to 843.23, 1,264.70 and 226.94

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Solution

The fourth proportional to 843.23, 1,264.70 and 226.94 is: 340.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    843.23 : 1,264.70 = 226.94 : x
  2. Step 2: Convert to fraction form
    843.23/1,264.70 = 226.94/x
  3. Step 3: Cross multiply
    843.23x = 1,264.70 × 226.94
  4. Step 4: Simplify right side
    843.23x = 287,005.26
  5. Step 5: Solve for x
    x = 287,005.26/843.23
  6. Step 6: Final answer
    x = 340.36

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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.