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Finding the Fourth Proportional to 543.97, 816.03 and 270.05

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Solution

The fourth proportional to 543.97, 816.03 and 270.05 is: 405.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.97 : 816.03 = 270.05 : x
  2. Step 2: Convert to fraction form
    543.97/816.03 = 270.05/x
  3. Step 3: Cross multiply
    543.97x = 816.03 × 270.05
  4. Step 4: Simplify right side
    543.97x = 220,367.55
  5. Step 5: Solve for x
    x = 220,367.55/543.97
  6. Step 6: Final answer
    x = 405.11

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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.