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Finding the Fourth Proportional to 447.52, 670.96 and 351.52

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Solution

The fourth proportional to 447.52, 670.96 and 351.52 is: 527.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.52 : 670.96 = 351.52 : x
  2. Step 2: Convert to fraction form
    447.52/670.96 = 351.52/x
  3. Step 3: Cross multiply
    447.52x = 670.96 × 351.52
  4. Step 4: Simplify right side
    447.52x = 235,855.86
  5. Step 5: Solve for x
    x = 235,855.86/447.52
  6. Step 6: Final answer
    x = 527.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.