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Finding the Fourth Proportional to 133,469.40, 200,252.70 and 54,640.20

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Solution

The fourth proportional to 133,469.40, 200,252.70 and 54,640.20 is: 81,980.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,469.40 : 200,252.70 = 54,640.20 : x
  2. Step 2: Convert to fraction form
    133,469.40/200,252.70 = 54,640.20/x
  3. Step 3: Cross multiply
    133,469.40x = 200,252.70 × 54,640.20
  4. Step 4: Simplify right side
    133,469.40x = 10,941,847,578.54
  5. Step 5: Solve for x
    x = 10,941,847,578.54/133,469.40
  6. Step 6: Final answer
    x = 81,980.20

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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.