Home / 352,229.75-528,015.92-138,999.43

Finding the Fourth Proportional to 352,229.75, 528,015.92 and 138,999.43

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Solution

The fourth proportional to 352,229.75, 528,015.92 and 138,999.43 is: 208,369.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,229.75 : 528,015.92 = 138,999.43 : x
  2. Step 2: Convert to fraction form
    352,229.75/528,015.92 = 138,999.43/x
  3. Step 3: Cross multiply
    352,229.75x = 528,015.92 × 138,999.43
  4. Step 4: Simplify right side
    352,229.75x = 73,393,911,910.93
  5. Step 5: Solve for x
    x = 73,393,911,910.93/352,229.75
  6. Step 6: Final answer
    x = 208,369.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.