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Finding the Fourth Proportional to 447.24, 671.04 and 203.94

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Solution

The fourth proportional to 447.24, 671.04 and 203.94 is: 305.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.24 : 671.04 = 203.94 : x
  2. Step 2: Convert to fraction form
    447.24/671.04 = 203.94/x
  3. Step 3: Cross multiply
    447.24x = 671.04 × 203.94
  4. Step 4: Simplify right side
    447.24x = 136,851.90
  5. Step 5: Solve for x
    x = 136,851.90/447.24
  6. Step 6: Final answer
    x = 305.99

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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.