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Finding the Fourth Proportional to 293.66, 440.38 and 131.26

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Solution

The fourth proportional to 293.66, 440.38 and 131.26 is: 196.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.66 : 440.38 = 131.26 : x
  2. Step 2: Convert to fraction form
    293.66/440.38 = 131.26/x
  3. Step 3: Cross multiply
    293.66x = 440.38 × 131.26
  4. Step 4: Simplify right side
    293.66x = 57,804.28
  5. Step 5: Solve for x
    x = 57,804.28/293.66
  6. Step 6: Final answer
    x = 196.84

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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.