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Finding the Fourth Proportional to 253,995.01, 381,220.93 and 135,767.41

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Solution

The fourth proportional to 253,995.01, 381,220.93 and 135,767.41 is: 203,773.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,995.01 : 381,220.93 = 135,767.41 : x
  2. Step 2: Convert to fraction form
    253,995.01/381,220.93 = 135,767.41/x
  3. Step 3: Cross multiply
    253,995.01x = 381,220.93 × 135,767.41
  4. Step 4: Simplify right side
    253,995.01x = 51,757,377,520.55
  5. Step 5: Solve for x
    x = 51,757,377,520.55/253,995.01
  6. Step 6: Final answer
    x = 203,773.21

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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.