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Finding the Fourth Proportional to 576.73, 796.05 and 355.60

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Solution

The fourth proportional to 576.73, 796.05 and 355.60 is: 490.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.73 : 796.05 = 355.60 : x
  2. Step 2: Convert to fraction form
    576.73/796.05 = 355.60/x
  3. Step 3: Cross multiply
    576.73x = 796.05 × 355.60
  4. Step 4: Simplify right side
    576.73x = 283,075.38
  5. Step 5: Solve for x
    x = 283,075.38/576.73
  6. Step 6: Final answer
    x = 490.83

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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.