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Finding the Fourth Proportional to 447.94, 672.83 and 265.69

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Solution

The fourth proportional to 447.94, 672.83 and 265.69 is: 399.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.94 : 672.83 = 265.69 : x
  2. Step 2: Convert to fraction form
    447.94/672.83 = 265.69/x
  3. Step 3: Cross multiply
    447.94x = 672.83 × 265.69
  4. Step 4: Simplify right side
    447.94x = 178,764.71
  5. Step 5: Solve for x
    x = 178,764.71/447.94
  6. Step 6: Final answer
    x = 399.08

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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.