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Finding the Fourth Proportional to 171,461.80, 256,755.30 and 136,469.80

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Solution

The fourth proportional to 171,461.80, 256,755.30 and 136,469.80 is: 204,356.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,461.80 : 256,755.30 = 136,469.80 : x
  2. Step 2: Convert to fraction form
    171,461.80/256,755.30 = 136,469.80/x
  3. Step 3: Cross multiply
    171,461.80x = 256,755.30 × 136,469.80
  4. Step 4: Simplify right side
    171,461.80x = 35,039,344,439.94
  5. Step 5: Solve for x
    x = 35,039,344,439.94/171,461.80
  6. Step 6: Final answer
    x = 204,356.56

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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.