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Finding the Fourth Proportional to 203,190.46, 280,539.84 and 126,825.88

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Solution

The fourth proportional to 203,190.46, 280,539.84 and 126,825.88 is: 175,105.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,190.46 : 280,539.84 = 126,825.88 : x
  2. Step 2: Convert to fraction form
    203,190.46/280,539.84 = 126,825.88/x
  3. Step 3: Cross multiply
    203,190.46x = 280,539.84 × 126,825.88
  4. Step 4: Simplify right side
    203,190.46x = 35,579,712,083.06
  5. Step 5: Solve for x
    x = 35,579,712,083.06/203,190.46
  6. Step 6: Final answer
    x = 175,105.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.