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Finding the Fourth Proportional to 609.21, 914.12 and 244.20

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Solution

The fourth proportional to 609.21, 914.12 and 244.20 is: 366.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.21 : 914.12 = 244.20 : x
  2. Step 2: Convert to fraction form
    609.21/914.12 = 244.20/x
  3. Step 3: Cross multiply
    609.21x = 914.12 × 244.20
  4. Step 4: Simplify right side
    609.21x = 223,226.88
  5. Step 5: Solve for x
    x = 223,226.88/609.21
  6. Step 6: Final answer
    x = 366.42

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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.