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Finding the Fourth Proportional to 202,100.94, 303,067.98 and 68,991.92

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Solution

The fourth proportional to 202,100.94, 303,067.98 and 68,991.92 is: 103,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,100.94 : 303,067.98 = 68,991.92 : x
  2. Step 2: Convert to fraction form
    202,100.94/303,067.98 = 68,991.92/x
  3. Step 3: Cross multiply
    202,100.94x = 303,067.98 × 68,991.92
  4. Step 4: Simplify right side
    202,100.94x = 20,909,241,830.72
  5. Step 5: Solve for x
    x = 20,909,241,830.72/202,100.94
  6. Step 6: Final answer
    x = 103,459.40

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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.