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Finding the Fourth Proportional to 203,057.56, 304,253.43 and 143,786.85

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Solution

The fourth proportional to 203,057.56, 304,253.43 and 143,786.85 is: 215,444.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,057.56 : 304,253.43 = 143,786.85 : x
  2. Step 2: Convert to fraction form
    203,057.56/304,253.43 = 143,786.85/x
  3. Step 3: Cross multiply
    203,057.56x = 304,253.43 × 143,786.85
  4. Step 4: Simplify right side
    203,057.56x = 43,747,642,301.40
  5. Step 5: Solve for x
    x = 43,747,642,301.40/203,057.56
  6. Step 6: Final answer
    x = 215,444.54

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1.5x scale

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.