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Finding the Fourth Proportional to 533,379.38, 800,007.46 and 133,989.78

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Solution

The fourth proportional to 533,379.38, 800,007.46 and 133,989.78 is: 200,969.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,379.38 : 800,007.46 = 133,989.78 : x
  2. Step 2: Convert to fraction form
    533,379.38/800,007.46 = 133,989.78/x
  3. Step 3: Cross multiply
    533,379.38x = 800,007.46 × 133,989.78
  4. Step 4: Simplify right side
    533,379.38x = 107,192,823,563.76
  5. Step 5: Solve for x
    x = 107,192,823,563.76/533,379.38
  6. Step 6: Final answer
    x = 200,969.19

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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.