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Finding the Fourth Proportional to 100,000.28, 150,008.15 and 33,440.69

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Solution

The fourth proportional to 100,000.28, 150,008.15 and 33,440.69 is: 50,163.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,000.28 : 150,008.15 = 33,440.69 : x
  2. Step 2: Convert to fraction form
    100,000.28/150,008.15 = 33,440.69/x
  3. Step 3: Cross multiply
    100,000.28x = 150,008.15 × 33,440.69
  4. Step 4: Simplify right side
    100,000.28x = 5,016,376,500.25
  5. Step 5: Solve for x
    x = 5,016,376,500.25/100,000.28
  6. Step 6: Final answer
    x = 50,163.62

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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.