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Finding the Fourth Proportional to 293.52, 439.92 and 131.04

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Solution

The fourth proportional to 293.52, 439.92 and 131.04 is: 196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.52 : 439.92 = 131.04 : x
  2. Step 2: Convert to fraction form
    293.52/439.92 = 131.04/x
  3. Step 3: Cross multiply
    293.52x = 439.92 × 131.04
  4. Step 4: Simplify right side
    293.52x = 57,647.12
  5. Step 5: Solve for x
    x = 57,647.12/293.52
  6. Step 6: Final answer
    x = 196.40

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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.