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Finding the Fourth Proportional to 263.36, 363.34 and 189.52

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Solution

The fourth proportional to 263.36, 363.34 and 189.52 is: 261.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.36 : 363.34 = 189.52 : x
  2. Step 2: Convert to fraction form
    263.36/363.34 = 189.52/x
  3. Step 3: Cross multiply
    263.36x = 363.34 × 189.52
  4. Step 4: Simplify right side
    263.36x = 68,860.20
  5. Step 5: Solve for x
    x = 68,860.20/263.36
  6. Step 6: Final answer
    x = 261.47

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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.