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Finding the Fourth Proportional to 191.09, 263.03 and 163.37

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Solution

The fourth proportional to 191.09, 263.03 and 163.37 is: 224.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.09 : 263.03 = 163.37 : x
  2. Step 2: Convert to fraction form
    191.09/263.03 = 163.37/x
  3. Step 3: Cross multiply
    191.09x = 263.03 × 163.37
  4. Step 4: Simplify right side
    191.09x = 42,970.39
  5. Step 5: Solve for x
    x = 42,970.39/191.09
  6. Step 6: Final answer
    x = 224.87

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