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Finding the Fourth Proportional to 373,719.36, 515,743.60 and 203,964.48

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Solution

The fourth proportional to 373,719.36, 515,743.60 and 203,964.48 is: 281,476.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,719.36 : 515,743.60 = 203,964.48 : x
  2. Step 2: Convert to fraction form
    373,719.36/515,743.60 = 203,964.48/x
  3. Step 3: Cross multiply
    373,719.36x = 515,743.60 × 203,964.48
  4. Step 4: Simplify right side
    373,719.36x = 105,193,375,187.33
  5. Step 5: Solve for x
    x = 105,193,375,187.33/373,719.36
  6. Step 6: Final answer
    x = 281,476.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.