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Finding the Fourth Proportional to 447.28, 672 and 304.18

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Solution

The fourth proportional to 447.28, 672 and 304.18 is: 457.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.28 : 672 = 304.18 : x
  2. Step 2: Convert to fraction form
    447.28/672 = 304.18/x
  3. Step 3: Cross multiply
    447.28x = 672 × 304.18
  4. Step 4: Simplify right side
    447.28x = 204,408.96
  5. Step 5: Solve for x
    x = 204,408.96/447.28
  6. Step 6: Final answer
    x = 457.00

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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.