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Finding the Fourth Proportional to 200,537.26, 300,843.83 and 80,603.55

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Solution

The fourth proportional to 200,537.26, 300,843.83 and 80,603.55 is: 120,920.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,537.26 : 300,843.83 = 80,603.55 : x
  2. Step 2: Convert to fraction form
    200,537.26/300,843.83 = 80,603.55/x
  3. Step 3: Cross multiply
    200,537.26x = 300,843.83 × 80,603.55
  4. Step 4: Simplify right side
    200,537.26x = 24,249,080,441.71
  5. Step 5: Solve for x
    x = 24,249,080,441.71/200,537.26
  6. Step 6: Final answer
    x = 120,920.57

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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.