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Finding the Fourth Proportional to 378.27, 562.55 and 366.12

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Solution

The fourth proportional to 378.27, 562.55 and 366.12 is: 544.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.27 : 562.55 = 366.12 : x
  2. Step 2: Convert to fraction form
    378.27/562.55 = 366.12/x
  3. Step 3: Cross multiply
    378.27x = 562.55 × 366.12
  4. Step 4: Simplify right side
    378.27x = 205,958.98
  5. Step 5: Solve for x
    x = 205,958.98/378.27
  6. Step 6: Final answer
    x = 544.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.