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Finding the Fourth Proportional to 608.30, 912.22 and 197.33

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Solution

The fourth proportional to 608.30, 912.22 and 197.33 is: 295.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.30 : 912.22 = 197.33 : x
  2. Step 2: Convert to fraction form
    608.30/912.22 = 197.33/x
  3. Step 3: Cross multiply
    608.30x = 912.22 × 197.33
  4. Step 4: Simplify right side
    608.30x = 180,003.32
  5. Step 5: Solve for x
    x = 180,003.32/608.30
  6. Step 6: Final answer
    x = 295.91

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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.