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Finding the Fourth Proportional to 375,464.52, 518,136.72 and 203,379.20

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Solution

The fourth proportional to 375,464.52, 518,136.72 and 203,379.20 is: 280,660.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,464.52 : 518,136.72 = 203,379.20 : x
  2. Step 2: Convert to fraction form
    375,464.52/518,136.72 = 203,379.20/x
  3. Step 3: Cross multiply
    375,464.52x = 518,136.72 × 203,379.20
  4. Step 4: Simplify right side
    375,464.52x = 105,378,231,604.22
  5. Step 5: Solve for x
    x = 105,378,231,604.22/375,464.52
  6. Step 6: Final answer
    x = 280,660.96

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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.