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Finding the Fourth Proportional to 400.60, 551.10 and 369.82

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Solution

The fourth proportional to 400.60, 551.10 and 369.82 is: 508.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.60 : 551.10 = 369.82 : x
  2. Step 2: Convert to fraction form
    400.60/551.10 = 369.82/x
  3. Step 3: Cross multiply
    400.60x = 551.10 × 369.82
  4. Step 4: Simplify right side
    400.60x = 203,807.80
  5. Step 5: Solve for x
    x = 203,807.80/400.60
  6. Step 6: Final answer
    x = 508.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.