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Finding the Fourth Proportional to 447.32, 672.18 and 303.92

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Solution

The fourth proportional to 447.32, 672.18 and 303.92 is: 456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.32 : 672.18 = 303.92 : x
  2. Step 2: Convert to fraction form
    447.32/672.18 = 303.92/x
  3. Step 3: Cross multiply
    447.32x = 672.18 × 303.92
  4. Step 4: Simplify right side
    447.32x = 204,288.95
  5. Step 5: Solve for x
    x = 204,288.95/447.32
  6. Step 6: Final answer
    x = 456.70

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