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Finding the Fourth Proportional to 220,843.40, 331,265.10 and 73,099.40

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Solution

The fourth proportional to 220,843.40, 331,265.10 and 73,099.40 is: 109,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,843.40 : 331,265.10 = 73,099.40 : x
  2. Step 2: Convert to fraction form
    220,843.40/331,265.10 = 73,099.40/x
  3. Step 3: Cross multiply
    220,843.40x = 331,265.10 × 73,099.40
  4. Step 4: Simplify right side
    220,843.40x = 24,215,280,050.94
  5. Step 5: Solve for x
    x = 24,215,280,050.94/220,843.40
  6. Step 6: Final answer
    x = 109,649.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.