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Finding the Fourth Proportional to 576.32, 795.42 and 355.46

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Solution

The fourth proportional to 576.32, 795.42 and 355.46 is: 490.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.32 : 795.42 = 355.46 : x
  2. Step 2: Convert to fraction form
    576.32/795.42 = 355.46/x
  3. Step 3: Cross multiply
    576.32x = 795.42 × 355.46
  4. Step 4: Simplify right side
    576.32x = 282,736.02
  5. Step 5: Solve for x
    x = 282,736.02/576.32
  6. Step 6: Final answer
    x = 490.59

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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.