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Finding the Fourth Proportional to 575.11, 793.47 and 353.92

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Solution

The fourth proportional to 575.11, 793.47 and 353.92 is: 488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.11 : 793.47 = 353.92 : x
  2. Step 2: Convert to fraction form
    575.11/793.47 = 353.92/x
  3. Step 3: Cross multiply
    575.11x = 793.47 × 353.92
  4. Step 4: Simplify right side
    575.11x = 280,824.90
  5. Step 5: Solve for x
    x = 280,824.90/575.11
  6. Step 6: Final answer
    x = 488.30

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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.