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Finding the Fourth Proportional to 263.37, 395.05 and 118.92

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Solution

The fourth proportional to 263.37, 395.05 and 118.92 is: 178.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.37 : 395.05 = 118.92 : x
  2. Step 2: Convert to fraction form
    263.37/395.05 = 118.92/x
  3. Step 3: Cross multiply
    263.37x = 395.05 × 118.92
  4. Step 4: Simplify right side
    263.37x = 46,978.66
  5. Step 5: Solve for x
    x = 46,978.66/263.37
  6. Step 6: Final answer
    x = 178.38

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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.