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Finding the Fourth Proportional to 363.15, 543.30 and 276.75

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Solution

The fourth proportional to 363.15, 543.30 and 276.75 is: 414.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.15 : 543.30 = 276.75 : x
  2. Step 2: Convert to fraction form
    363.15/543.30 = 276.75/x
  3. Step 3: Cross multiply
    363.15x = 543.30 × 276.75
  4. Step 4: Simplify right side
    363.15x = 150,358.28
  5. Step 5: Solve for x
    x = 150,358.28/363.15
  6. Step 6: Final answer
    x = 414.04

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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.