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Finding the Fourth Proportional to 199,508.80, 275,312.42 and 108,859.36

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Solution

The fourth proportional to 199,508.80, 275,312.42 and 108,859.36 is: 150,220.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,508.80 : 275,312.42 = 108,859.36 : x
  2. Step 2: Convert to fraction form
    199,508.80/275,312.42 = 108,859.36/x
  3. Step 3: Cross multiply
    199,508.80x = 275,312.42 × 108,859.36
  4. Step 4: Simplify right side
    199,508.80x = 29,970,333,841.25
  5. Step 5: Solve for x
    x = 29,970,333,841.25/199,508.80
  6. Step 6: Final answer
    x = 150,220.61

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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.