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Finding the Fourth Proportional to 447.48, 671.79 and 265.02

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Solution

The fourth proportional to 447.48, 671.79 and 265.02 is: 397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.48 : 671.79 = 265.02 : x
  2. Step 2: Convert to fraction form
    447.48/671.79 = 265.02/x
  3. Step 3: Cross multiply
    447.48x = 671.79 × 265.02
  4. Step 4: Simplify right side
    447.48x = 178,037.79
  5. Step 5: Solve for x
    x = 178,037.79/447.48
  6. Step 6: Final answer
    x = 397.87

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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.