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Finding the Fourth Proportional to 609.01, 912.36 and 300.50

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Solution

The fourth proportional to 609.01, 912.36 and 300.50 is: 450.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.01 : 912.36 = 300.50 : x
  2. Step 2: Convert to fraction form
    609.01/912.36 = 300.50/x
  3. Step 3: Cross multiply
    609.01x = 912.36 × 300.50
  4. Step 4: Simplify right side
    609.01x = 274,163.04
  5. Step 5: Solve for x
    x = 274,163.04/609.01
  6. Step 6: Final answer
    x = 450.18

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Double scale
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Similar ratio
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1.5x scale

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.