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Finding the Fourth Proportional to 263.69, 363.65 and 193.98

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Solution

The fourth proportional to 263.69, 363.65 and 193.98 is: 267.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.69 : 363.65 = 193.98 : x
  2. Step 2: Convert to fraction form
    263.69/363.65 = 193.98/x
  3. Step 3: Cross multiply
    263.69x = 363.65 × 193.98
  4. Step 4: Simplify right side
    263.69x = 70,540.83
  5. Step 5: Solve for x
    x = 70,540.83/263.69
  6. Step 6: Final answer
    x = 267.51

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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.