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Finding the Fourth Proportional to 200,422.30, 300,661.11 and 67,340.62

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Solution

The fourth proportional to 200,422.30, 300,661.11 and 67,340.62 is: 101,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,422.30 : 300,661.11 = 67,340.62 : x
  2. Step 2: Convert to fraction form
    200,422.30/300,661.11 = 67,340.62/x
  3. Step 3: Cross multiply
    200,422.30x = 300,661.11 × 67,340.62
  4. Step 4: Simplify right side
    200,422.30x = 20,246,705,557.29
  5. Step 5: Solve for x
    x = 20,246,705,557.29/200,422.30
  6. Step 6: Final answer
    x = 101,020.22

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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.