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Finding the Fourth Proportional to 200,422.73, 300,661.77 and 67,341.05

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Solution

The fourth proportional to 200,422.73, 300,661.77 and 67,341.05 is: 101,020.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,422.73 : 300,661.77 = 67,341.05 : x
  2. Step 2: Convert to fraction form
    200,422.73/300,661.77 = 67,341.05/x
  3. Step 3: Cross multiply
    200,422.73x = 300,661.77 × 67,341.05
  4. Step 4: Simplify right side
    200,422.73x = 20,246,879,286.66
  5. Step 5: Solve for x
    x = 20,246,879,286.66/200,422.73
  6. Step 6: Final answer
    x = 101,020.87

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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.