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Finding the Fourth Proportional to 608.44, 912.15 and 243.49

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Solution

The fourth proportional to 608.44, 912.15 and 243.49 is: 365.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.44 : 912.15 = 243.49 : x
  2. Step 2: Convert to fraction form
    608.44/912.15 = 243.49/x
  3. Step 3: Cross multiply
    608.44x = 912.15 × 243.49
  4. Step 4: Simplify right side
    608.44x = 222,099.40
  5. Step 5: Solve for x
    x = 222,099.40/608.44
  6. Step 6: Final answer
    x = 365.03

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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.