Home / 203,617.20-305,231.40-158,613.60

Finding the Fourth Proportional to 203,617.20, 305,231.40 and 158,613.60

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Solution

The fourth proportional to 203,617.20, 305,231.40 and 158,613.60 is: 237,768.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,617.20 : 305,231.40 = 158,613.60 : x
  2. Step 2: Convert to fraction form
    203,617.20/305,231.40 = 158,613.60/x
  3. Step 3: Cross multiply
    203,617.20x = 305,231.40 × 158,613.60
  4. Step 4: Simplify right side
    203,617.20x = 48,413,851,187.04
  5. Step 5: Solve for x
    x = 48,413,851,187.04/203,617.20
  6. Step 6: Final answer
    x = 237,768.97

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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.