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Finding the Fourth Proportional to 400.74, 600.09 and 254.04

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Solution

The fourth proportional to 400.74, 600.09 and 254.04 is: 380.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.74 : 600.09 = 254.04 : x
  2. Step 2: Convert to fraction form
    400.74/600.09 = 254.04/x
  3. Step 3: Cross multiply
    400.74x = 600.09 × 254.04
  4. Step 4: Simplify right side
    400.74x = 152,446.86
  5. Step 5: Solve for x
    x = 152,446.86/400.74
  6. Step 6: Final answer
    x = 380.41

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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.