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Finding the Fourth Proportional to 551.73, 827.02 and 186.22

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Solution

The fourth proportional to 551.73, 827.02 and 186.22 is: 279.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.73 : 827.02 = 186.22 : x
  2. Step 2: Convert to fraction form
    551.73/827.02 = 186.22/x
  3. Step 3: Cross multiply
    551.73x = 827.02 × 186.22
  4. Step 4: Simplify right side
    551.73x = 154,007.66
  5. Step 5: Solve for x
    x = 154,007.66/551.73
  6. Step 6: Final answer
    x = 279.14

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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.