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Finding the Fourth Proportional to 373,684.50, 515,695.56 and 203,929.56

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Solution

The fourth proportional to 373,684.50, 515,695.56 and 203,929.56 is: 281,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,684.50 : 515,695.56 = 203,929.56 : x
  2. Step 2: Convert to fraction form
    373,684.50/515,695.56 = 203,929.56/x
  3. Step 3: Cross multiply
    373,684.50x = 515,695.56 × 203,929.56
  4. Step 4: Simplify right side
    373,684.50x = 105,165,568,644.75
  5. Step 5: Solve for x
    x = 105,165,568,644.75/373,684.50
  6. Step 6: Final answer
    x = 281,428.77

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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.