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Finding the Fourth Proportional to 551.90, 827.19 and 227.18

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Solution

The fourth proportional to 551.90, 827.19 and 227.18 is: 340.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.90 : 827.19 = 227.18 : x
  2. Step 2: Convert to fraction form
    551.90/827.19 = 227.18/x
  3. Step 3: Cross multiply
    551.90x = 827.19 × 227.18
  4. Step 4: Simplify right side
    551.90x = 187,921.02
  5. Step 5: Solve for x
    x = 187,921.02/551.90
  6. Step 6: Final answer
    x = 340.50

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.