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Finding the Fourth Proportional to 263.54, 363.65 and 231.06

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Solution

The fourth proportional to 263.54, 363.65 and 231.06 is: 318.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.54 : 363.65 = 231.06 : x
  2. Step 2: Convert to fraction form
    263.54/363.65 = 231.06/x
  3. Step 3: Cross multiply
    263.54x = 363.65 × 231.06
  4. Step 4: Simplify right side
    263.54x = 84,024.97
  5. Step 5: Solve for x
    x = 84,024.97/263.54
  6. Step 6: Final answer
    x = 318.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.