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Finding the Fourth Proportional to 485.24, 672.96 and 444.23

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Solution

The fourth proportional to 485.24, 672.96 and 444.23 is: 616.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    485.24 : 672.96 = 444.23 : x
  2. Step 2: Convert to fraction form
    485.24/672.96 = 444.23/x
  3. Step 3: Cross multiply
    485.24x = 672.96 × 444.23
  4. Step 4: Simplify right side
    485.24x = 298,951.13
  5. Step 5: Solve for x
    x = 298,951.13/485.24
  6. Step 6: Final answer
    x = 616.09

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.