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Finding the Fourth Proportional to 397.25, 551.04 and 376.49

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Solution

The fourth proportional to 397.25, 551.04 and 376.49 is: 522.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.25 : 551.04 = 376.49 : x
  2. Step 2: Convert to fraction form
    397.25/551.04 = 376.49/x
  3. Step 3: Cross multiply
    397.25x = 551.04 × 376.49
  4. Step 4: Simplify right side
    397.25x = 207,461.05
  5. Step 5: Solve for x
    x = 207,461.05/397.25
  6. Step 6: Final answer
    x = 522.24

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.