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Finding the Fourth Proportional to 818.01, 1,227.24 and 270.14

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Solution

The fourth proportional to 818.01, 1,227.24 and 270.14 is: 405.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    818.01 : 1,227.24 = 270.14 : x
  2. Step 2: Convert to fraction form
    818.01/1,227.24 = 270.14/x
  3. Step 3: Cross multiply
    818.01x = 1,227.24 × 270.14
  4. Step 4: Simplify right side
    818.01x = 331,520.48
  5. Step 5: Solve for x
    x = 331,520.48/818.01
  6. Step 6: Final answer
    x = 405.28

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Double scale
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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.