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Finding the Fourth Proportional to 203,801.80, 305,702.46 and 133,664.70

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Solution

The fourth proportional to 203,801.80, 305,702.46 and 133,664.70 is: 200,496.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,801.80 : 305,702.46 = 133,664.70 : x
  2. Step 2: Convert to fraction form
    203,801.80/305,702.46 = 133,664.70/x
  3. Step 3: Cross multiply
    203,801.80x = 305,702.46 × 133,664.70
  4. Step 4: Simplify right side
    203,801.80x = 40,861,627,605.16
  5. Step 5: Solve for x
    x = 40,861,627,605.16/203,801.80
  6. Step 6: Final answer
    x = 200,496.89

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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.