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Finding the Fourth Proportional to 490.32, 734.85 and 246.92

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Solution

The fourth proportional to 490.32, 734.85 and 246.92 is: 370.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.32 : 734.85 = 246.92 : x
  2. Step 2: Convert to fraction form
    490.32/734.85 = 246.92/x
  3. Step 3: Cross multiply
    490.32x = 734.85 × 246.92
  4. Step 4: Simplify right side
    490.32x = 181,445.49
  5. Step 5: Solve for x
    x = 181,445.49/490.32
  6. Step 6: Final answer
    x = 370.06

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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.