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Finding the Fourth Proportional to 203,161.77, 280,501.79 and 126,710.73

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Solution

The fourth proportional to 203,161.77, 280,501.79 and 126,710.73 is: 174,947.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,161.77 : 280,501.79 = 126,710.73 : x
  2. Step 2: Convert to fraction form
    203,161.77/280,501.79 = 126,710.73/x
  3. Step 3: Cross multiply
    203,161.77x = 280,501.79 × 126,710.73
  4. Step 4: Simplify right side
    203,161.77x = 35,542,585,943.65
  5. Step 5: Solve for x
    x = 35,542,585,943.65/203,161.77
  6. Step 6: Final answer
    x = 174,947.22

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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.