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Finding the Fourth Proportional to 447.75, 670.47 and 265.27

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Solution

The fourth proportional to 447.75, 670.47 and 265.27 is: 397.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.75 : 670.47 = 265.27 : x
  2. Step 2: Convert to fraction form
    447.75/670.47 = 265.27/x
  3. Step 3: Cross multiply
    447.75x = 670.47 × 265.27
  4. Step 4: Simplify right side
    447.75x = 177,855.58
  5. Step 5: Solve for x
    x = 177,855.58/447.75
  6. Step 6: Final answer
    x = 397.23

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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.