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Finding the Fourth Proportional to 200,404.36, 300,611.40 and 67,288.96

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Solution

The fourth proportional to 200,404.36, 300,611.40 and 67,288.96 is: 100,935.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,404.36 : 300,611.40 = 67,288.96 : x
  2. Step 2: Convert to fraction form
    200,404.36/300,611.40 = 67,288.96/x
  3. Step 3: Cross multiply
    200,404.36x = 300,611.40 × 67,288.96
  4. Step 4: Simplify right side
    200,404.36x = 20,227,828,470.14
  5. Step 5: Solve for x
    x = 20,227,828,470.14/200,404.36
  6. Step 6: Final answer
    x = 100,935.07

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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.