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Finding the Fourth Proportional to 373,672.08, 515,668.92 and 203,910

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Solution

The fourth proportional to 373,672.08, 515,668.92 and 203,910 is: 281,396.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,672.08 : 515,668.92 = 203,910 : x
  2. Step 2: Convert to fraction form
    373,672.08/515,668.92 = 203,910/x
  3. Step 3: Cross multiply
    373,672.08x = 515,668.92 × 203,910
  4. Step 4: Simplify right side
    373,672.08x = 105,150,049,477.20
  5. Step 5: Solve for x
    x = 105,150,049,477.20/373,672.08
  6. Step 6: Final answer
    x = 281,396.59

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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.