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Finding the Fourth Proportional to 551.69, 827.30 and 277.94

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Solution

The fourth proportional to 551.69, 827.30 and 277.94 is: 416.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.69 : 827.30 = 277.94 : x
  2. Step 2: Convert to fraction form
    551.69/827.30 = 277.94/x
  3. Step 3: Cross multiply
    551.69x = 827.30 × 277.94
  4. Step 4: Simplify right side
    551.69x = 229,939.76
  5. Step 5: Solve for x
    x = 229,939.76/551.69
  6. Step 6: Final answer
    x = 416.79

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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.