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Finding the Fourth Proportional to 220,836.30, 331,254.45 and 54,624.30

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Solution

The fourth proportional to 220,836.30, 331,254.45 and 54,624.30 is: 81,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,836.30 : 331,254.45 = 54,624.30 : x
  2. Step 2: Convert to fraction form
    220,836.30/331,254.45 = 54,624.30/x
  3. Step 3: Cross multiply
    220,836.30x = 331,254.45 × 54,624.30
  4. Step 4: Simplify right side
    220,836.30x = 18,094,542,453.14
  5. Step 5: Solve for x
    x = 18,094,542,453.14/220,836.30
  6. Step 6: Final answer
    x = 81,936.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.