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Finding the Fourth Proportional to 400.51, 601.17 and 254.44

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Solution

The fourth proportional to 400.51, 601.17 and 254.44 is: 381.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.51 : 601.17 = 254.44 : x
  2. Step 2: Convert to fraction form
    400.51/601.17 = 254.44/x
  3. Step 3: Cross multiply
    400.51x = 601.17 × 254.44
  4. Step 4: Simplify right side
    400.51x = 152,961.69
  5. Step 5: Solve for x
    x = 152,961.69/400.51
  6. Step 6: Final answer
    x = 381.92

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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.