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Finding the Fourth Proportional to 358,379.61, 494,553.92 and 203,359.14

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Solution

The fourth proportional to 358,379.61, 494,553.92 and 203,359.14 is: 280,629.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,379.61 : 494,553.92 = 203,359.14 : x
  2. Step 2: Convert to fraction form
    358,379.61/494,553.92 = 203,359.14/x
  3. Step 3: Cross multiply
    358,379.61x = 494,553.92 × 203,359.14
  4. Step 4: Simplify right side
    358,379.61x = 100,572,058,838.03
  5. Step 5: Solve for x
    x = 100,572,058,838.03/358,379.61
  6. Step 6: Final answer
    x = 280,629.97

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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.