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Finding the Fourth Proportional to 203,102.73, 280,297.56 and 112,467.12

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Solution

The fourth proportional to 203,102.73, 280,297.56 and 112,467.12 is: 155,213.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,102.73 : 280,297.56 = 112,467.12 : x
  2. Step 2: Convert to fraction form
    203,102.73/280,297.56 = 112,467.12/x
  3. Step 3: Cross multiply
    203,102.73x = 280,297.56 × 112,467.12
  4. Step 4: Simplify right side
    203,102.73x = 31,524,259,316.23
  5. Step 5: Solve for x
    x = 31,524,259,316.23/203,102.73
  6. Step 6: Final answer
    x = 155,213.37

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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.