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Finding the Fourth Proportional to 551.80, 827.70 and 277.48

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Solution

The fourth proportional to 551.80, 827.70 and 277.48 is: 416.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.80 : 827.70 = 277.48 : x
  2. Step 2: Convert to fraction form
    551.80/827.70 = 277.48/x
  3. Step 3: Cross multiply
    551.80x = 827.70 × 277.48
  4. Step 4: Simplify right side
    551.80x = 229,670.20
  5. Step 5: Solve for x
    x = 229,670.20/551.80
  6. Step 6: Final answer
    x = 416.22

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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.