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Finding the Fourth Proportional to 512.79, 769.73 and 375.36

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Solution

The fourth proportional to 512.79, 769.73 and 375.36 is: 563.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    512.79 : 769.73 = 375.36 : x
  2. Step 2: Convert to fraction form
    512.79/769.73 = 375.36/x
  3. Step 3: Cross multiply
    512.79x = 769.73 × 375.36
  4. Step 4: Simplify right side
    512.79x = 288,923.98
  5. Step 5: Solve for x
    x = 288,923.98/512.79
  6. Step 6: Final answer
    x = 563.44

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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.