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Finding the Fourth Proportional to 199,508.77, 275,328.73 and 108,869.70

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Solution

The fourth proportional to 199,508.77, 275,328.73 and 108,869.70 is: 150,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,508.77 : 275,328.73 = 108,869.70 : x
  2. Step 2: Convert to fraction form
    199,508.77/275,328.73 = 108,869.70/x
  3. Step 3: Cross multiply
    199,508.77x = 275,328.73 × 108,869.70
  4. Step 4: Simplify right side
    199,508.77x = 29,974,956,236.48
  5. Step 5: Solve for x
    x = 29,974,956,236.48/199,508.77
  6. Step 6: Final answer
    x = 150,243.80

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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.