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Finding the Fourth Proportional to 200,538.26, 300,845.33 and 80,604.55

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Solution

The fourth proportional to 200,538.26, 300,845.33 and 80,604.55 is: 120,922.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,538.26 : 300,845.33 = 80,604.55 : x
  2. Step 2: Convert to fraction form
    200,538.26/300,845.33 = 80,604.55/x
  3. Step 3: Cross multiply
    200,538.26x = 300,845.33 × 80,604.55
  4. Step 4: Simplify right side
    200,538.26x = 24,249,502,444.25
  5. Step 5: Solve for x
    x = 24,249,502,444.25/200,538.26
  6. Step 6: Final answer
    x = 120,922.07

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1.5x scale

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.