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Finding the Fourth Proportional to 319.05, 440.26 and 179.13

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Solution

The fourth proportional to 319.05, 440.26 and 179.13 is: 247.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    319.05 : 440.26 = 179.13 : x
  2. Step 2: Convert to fraction form
    319.05/440.26 = 179.13/x
  3. Step 3: Cross multiply
    319.05x = 440.26 × 179.13
  4. Step 4: Simplify right side
    319.05x = 78,865.65
  5. Step 5: Solve for x
    x = 78,865.65/319.05
  6. Step 6: Final answer
    x = 247.19

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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.