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Finding the Fourth Proportional to 373,745.08, 515,760.54 and 203,979.16

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Solution

The fourth proportional to 373,745.08, 515,760.54 and 203,979.16 is: 281,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,745.08 : 515,760.54 = 203,979.16 : x
  2. Step 2: Convert to fraction form
    373,745.08/515,760.54 = 203,979.16/x
  3. Step 3: Cross multiply
    373,745.08x = 515,760.54 × 203,979.16
  4. Step 4: Simplify right side
    373,745.08x = 105,204,401,710.35
  5. Step 5: Solve for x
    x = 105,204,401,710.35/373,745.08
  6. Step 6: Final answer
    x = 281,487.05

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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.