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Finding the Fourth Proportional to 551.56, 827.52 and 243.56

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Solution

The fourth proportional to 551.56, 827.52 and 243.56 is: 365.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.56 : 827.52 = 243.56 : x
  2. Step 2: Convert to fraction form
    551.56/827.52 = 243.56/x
  3. Step 3: Cross multiply
    551.56x = 827.52 × 243.56
  4. Step 4: Simplify right side
    551.56x = 201,550.77
  5. Step 5: Solve for x
    x = 201,550.77/551.56
  6. Step 6: Final answer
    x = 365.42

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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.