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Finding the Fourth Proportional to 373,379.29, 515,249.71 and 203,609.77

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Solution

The fourth proportional to 373,379.29, 515,249.71 and 203,609.77 is: 280,974.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,379.29 : 515,249.71 = 203,609.77 : x
  2. Step 2: Convert to fraction form
    373,379.29/515,249.71 = 203,609.77/x
  3. Step 3: Cross multiply
    373,379.29x = 515,249.71 × 203,609.77
  4. Step 4: Simplify right side
    373,379.29x = 104,909,874,945.67
  5. Step 5: Solve for x
    x = 104,909,874,945.67/373,379.29
  6. Step 6: Final answer
    x = 280,974.01

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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.