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Finding the Fourth Proportional to 576.98, 796.27 and 328.31

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Solution

The fourth proportional to 576.98, 796.27 and 328.31 is: 453.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.98 : 796.27 = 328.31 : x
  2. Step 2: Convert to fraction form
    576.98/796.27 = 328.31/x
  3. Step 3: Cross multiply
    576.98x = 796.27 × 328.31
  4. Step 4: Simplify right side
    576.98x = 261,419.42
  5. Step 5: Solve for x
    x = 261,419.42/576.98
  6. Step 6: Final answer
    x = 453.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.