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Finding the Fourth Proportional to 174.99, 263.37 and 131.88

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Solution

The fourth proportional to 174.99, 263.37 and 131.88 is: 198.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.99 : 263.37 = 131.88 : x
  2. Step 2: Convert to fraction form
    174.99/263.37 = 131.88/x
  3. Step 3: Cross multiply
    174.99x = 263.37 × 131.88
  4. Step 4: Simplify right side
    174.99x = 34,733.24
  5. Step 5: Solve for x
    x = 34,733.24/174.99
  6. Step 6: Final answer
    x = 198.49

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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.