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Finding the Fourth Proportional to 574.17, 792.63 and 353.31

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Solution

The fourth proportional to 574.17, 792.63 and 353.31 is: 487.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.17 : 792.63 = 353.31 : x
  2. Step 2: Convert to fraction form
    574.17/792.63 = 353.31/x
  3. Step 3: Cross multiply
    574.17x = 792.63 × 353.31
  4. Step 4: Simplify right side
    574.17x = 280,044.11
  5. Step 5: Solve for x
    x = 280,044.11/574.17
  6. Step 6: Final answer
    x = 487.74

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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.