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Finding the Fourth Proportional to 541.53, 812.28 and 267.80

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Solution

The fourth proportional to 541.53, 812.28 and 267.80 is: 401.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.53 : 812.28 = 267.80 : x
  2. Step 2: Convert to fraction form
    541.53/812.28 = 267.80/x
  3. Step 3: Cross multiply
    541.53x = 812.28 × 267.80
  4. Step 4: Simplify right side
    541.53x = 217,524.52
  5. Step 5: Solve for x
    x = 217,524.52/541.53
  6. Step 6: Final answer
    x = 401.69

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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.