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Finding the Fourth Proportional to 293.30, 440.06 and 131.10

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Solution

The fourth proportional to 293.30, 440.06 and 131.10 is: 196.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.30 : 440.06 = 131.10 : x
  2. Step 2: Convert to fraction form
    293.30/440.06 = 131.10/x
  3. Step 3: Cross multiply
    293.30x = 440.06 × 131.10
  4. Step 4: Simplify right side
    293.30x = 57,691.21
  5. Step 5: Solve for x
    x = 57,691.21/293.30
  6. Step 6: Final answer
    x = 196.70

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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.