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Finding the Fourth Proportional to 263.79, 397.26 and 240.44

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Solution

The fourth proportional to 263.79, 397.26 and 240.44 is: 362.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.79 : 397.26 = 240.44 : x
  2. Step 2: Convert to fraction form
    263.79/397.26 = 240.44/x
  3. Step 3: Cross multiply
    263.79x = 397.26 × 240.44
  4. Step 4: Simplify right side
    263.79x = 95,516.80
  5. Step 5: Solve for x
    x = 95,516.80/263.79
  6. Step 6: Final answer
    x = 362.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.