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Finding the Fourth Proportional to 576.11, 794.85 and 339.92

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Solution

The fourth proportional to 576.11, 794.85 and 339.92 is: 468.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.11 : 794.85 = 339.92 : x
  2. Step 2: Convert to fraction form
    576.11/794.85 = 339.92/x
  3. Step 3: Cross multiply
    576.11x = 794.85 × 339.92
  4. Step 4: Simplify right side
    576.11x = 270,181.44
  5. Step 5: Solve for x
    x = 270,181.44/576.11
  6. Step 6: Final answer
    x = 468.98

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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.