Home / 203,471.28-305,270.45-122,507.06

Finding the Fourth Proportional to 203,471.28, 305,270.45 and 122,507.06

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Solution

The fourth proportional to 203,471.28, 305,270.45 and 122,507.06 is: 183,798.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,471.28 : 305,270.45 = 122,507.06 : x
  2. Step 2: Convert to fraction form
    203,471.28/305,270.45 = 122,507.06/x
  3. Step 3: Cross multiply
    203,471.28x = 305,270.45 × 122,507.06
  4. Step 4: Simplify right side
    203,471.28x = 37,397,783,195.49
  5. Step 5: Solve for x
    x = 37,397,783,195.49/203,471.28
  6. Step 6: Final answer
    x = 183,798.83

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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.