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Finding the Fourth Proportional to 199,434.58, 275,209.59 and 108,789.81

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Solution

The fourth proportional to 199,434.58, 275,209.59 and 108,789.81 is: 150,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,434.58 : 275,209.59 = 108,789.81 : x
  2. Step 2: Convert to fraction form
    199,434.58/275,209.59 = 108,789.81/x
  3. Step 3: Cross multiply
    199,434.58x = 275,209.59 × 108,789.81
  4. Step 4: Simplify right side
    199,434.58x = 29,939,999,006.28
  5. Step 5: Solve for x
    x = 29,939,999,006.28/199,434.58
  6. Step 6: Final answer
    x = 150,124.41

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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.