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Finding the Fourth Proportional to 490.07, 734.20 and 294.86

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Solution

The fourth proportional to 490.07, 734.20 and 294.86 is: 441.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.07 : 734.20 = 294.86 : x
  2. Step 2: Convert to fraction form
    490.07/734.20 = 294.86/x
  3. Step 3: Cross multiply
    490.07x = 734.20 × 294.86
  4. Step 4: Simplify right side
    490.07x = 216,487.31
  5. Step 5: Solve for x
    x = 216,487.31/490.07
  6. Step 6: Final answer
    x = 441.75

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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.