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Finding the Fourth Proportional to 303,650.35, 419,212.39 and 201,813.91

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Solution

The fourth proportional to 303,650.35, 419,212.39 and 201,813.91 is: 278,619.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,650.35 : 419,212.39 = 201,813.91 : x
  2. Step 2: Convert to fraction form
    303,650.35/419,212.39 = 201,813.91/x
  3. Step 3: Cross multiply
    303,650.35x = 419,212.39 × 201,813.91
  4. Step 4: Simplify right side
    303,650.35x = 84,602,891,546.34
  5. Step 5: Solve for x
    x = 84,602,891,546.34/303,650.35
  6. Step 6: Final answer
    x = 278,619.44

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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.