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Finding the Fourth Proportional to 406.11, 609.06 and 200.48

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Solution

The fourth proportional to 406.11, 609.06 and 200.48 is: 300.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.11 : 609.06 = 200.48 : x
  2. Step 2: Convert to fraction form
    406.11/609.06 = 200.48/x
  3. Step 3: Cross multiply
    406.11x = 609.06 × 200.48
  4. Step 4: Simplify right side
    406.11x = 122,104.35
  5. Step 5: Solve for x
    x = 122,104.35/406.11
  6. Step 6: Final answer
    x = 300.67

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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.