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Finding the Fourth Proportional to 203,569.36, 305,042.66 and 108,813.04

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Solution

The fourth proportional to 203,569.36, 305,042.66 and 108,813.04 is: 163,053.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,569.36 : 305,042.66 = 108,813.04 : x
  2. Step 2: Convert to fraction form
    203,569.36/305,042.66 = 108,813.04/x
  3. Step 3: Cross multiply
    203,569.36x = 305,042.66 × 108,813.04
  4. Step 4: Simplify right side
    203,569.36x = 33,192,618,620.22
  5. Step 5: Solve for x
    x = 33,192,618,620.22/203,569.36
  6. Step 6: Final answer
    x = 163,053.12

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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.