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Finding the Fourth Proportional to 219,007.30, 327,896.55 and 212,863.30

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Solution

The fourth proportional to 219,007.30, 327,896.55 and 212,863.30 is: 318,697.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,007.30 : 327,896.55 = 212,863.30 : x
  2. Step 2: Convert to fraction form
    219,007.30/327,896.55 = 212,863.30/x
  3. Step 3: Cross multiply
    219,007.30x = 327,896.55 × 212,863.30
  4. Step 4: Simplify right side
    219,007.30x = 69,797,141,691.62
  5. Step 5: Solve for x
    x = 69,797,141,691.62/219,007.30
  6. Step 6: Final answer
    x = 318,697.79

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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.