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Finding the Fourth Proportional to 293.97, 441.86 and 279.57

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Solution

The fourth proportional to 293.97, 441.86 and 279.57 is: 420.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.97 : 441.86 = 279.57 : x
  2. Step 2: Convert to fraction form
    293.97/441.86 = 279.57/x
  3. Step 3: Cross multiply
    293.97x = 441.86 × 279.57
  4. Step 4: Simplify right side
    293.97x = 123,529.40
  5. Step 5: Solve for x
    x = 123,529.40/293.97
  6. Step 6: Final answer
    x = 420.21

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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.