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Finding the Fourth Proportional to 200,422.23, 300,661.02 and 67,340.55

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Solution

The fourth proportional to 200,422.23, 300,661.02 and 67,340.55 is: 101,020.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,422.23 : 300,661.02 = 67,340.55 : x
  2. Step 2: Convert to fraction form
    200,422.23/300,661.02 = 67,340.55/x
  3. Step 3: Cross multiply
    200,422.23x = 300,661.02 × 67,340.55
  4. Step 4: Simplify right side
    200,422.23x = 20,246,678,450.36
  5. Step 5: Solve for x
    x = 20,246,678,450.36/200,422.23
  6. Step 6: Final answer
    x = 101,020.12

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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.