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Finding the Fourth Proportional to 293.87, 440.68 and 120.49

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Solution

The fourth proportional to 293.87, 440.68 and 120.49 is: 180.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.87 : 440.68 = 120.49 : x
  2. Step 2: Convert to fraction form
    293.87/440.68 = 120.49/x
  3. Step 3: Cross multiply
    293.87x = 440.68 × 120.49
  4. Step 4: Simplify right side
    293.87x = 53,097.53
  5. Step 5: Solve for x
    x = 53,097.53/293.87
  6. Step 6: Final answer
    x = 180.68

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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.