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Finding the Fourth Proportional to 203,608.27, 280,986.92 and 123,020.22

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Solution

The fourth proportional to 203,608.27, 280,986.92 and 123,020.22 is: 169,772.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,608.27 : 280,986.92 = 123,020.22 : x
  2. Step 2: Convert to fraction form
    203,608.27/280,986.92 = 123,020.22/x
  3. Step 3: Cross multiply
    203,608.27x = 280,986.92 × 123,020.22
  4. Step 4: Simplify right side
    203,608.27x = 34,567,071,688.90
  5. Step 5: Solve for x
    x = 34,567,071,688.90/203,608.27
  6. Step 6: Final answer
    x = 169,772.44

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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.