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Finding the Fourth Proportional to 609.11, 912.52 and 300.60

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Solution

The fourth proportional to 609.11, 912.52 and 300.60 is: 450.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.11 : 912.52 = 300.60 : x
  2. Step 2: Convert to fraction form
    609.11/912.52 = 300.60/x
  3. Step 3: Cross multiply
    609.11x = 912.52 × 300.60
  4. Step 4: Simplify right side
    609.11x = 274,306.18
  5. Step 5: Solve for x
    x = 274,306.18/609.11
  6. Step 6: Final answer
    x = 450.34

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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.