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Finding the Fourth Proportional to 486.22, 667.38 and 444.70

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Solution

The fourth proportional to 486.22, 667.38 and 444.70 is: 610.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.22 : 667.38 = 444.70 : x
  2. Step 2: Convert to fraction form
    486.22/667.38 = 444.70/x
  3. Step 3: Cross multiply
    486.22x = 667.38 × 444.70
  4. Step 4: Simplify right side
    486.22x = 296,782.22
  5. Step 5: Solve for x
    x = 296,782.22/486.22
  6. Step 6: Final answer
    x = 610.39

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.