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Finding the Fourth Proportional to 512.40, 767.39 and 366.33

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Solution

The fourth proportional to 512.40, 767.39 and 366.33 is: 548.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    512.40 : 767.39 = 366.33 : x
  2. Step 2: Convert to fraction form
    512.40/767.39 = 366.33/x
  3. Step 3: Cross multiply
    512.40x = 767.39 × 366.33
  4. Step 4: Simplify right side
    512.40x = 281,116.15
  5. Step 5: Solve for x
    x = 281,116.15/512.40
  6. Step 6: Final answer
    x = 548.63

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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.