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Finding the Fourth Proportional to 207,548.94, 311,449.41 and 82,879.50

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Solution

The fourth proportional to 207,548.94, 311,449.41 and 82,879.50 is: 124,369.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,548.94 : 311,449.41 = 82,879.50 : x
  2. Step 2: Convert to fraction form
    207,548.94/311,449.41 = 82,879.50/x
  3. Step 3: Cross multiply
    207,548.94x = 311,449.41 × 82,879.50
  4. Step 4: Simplify right side
    207,548.94x = 25,812,771,376.10
  5. Step 5: Solve for x
    x = 25,812,771,376.10/207,548.94
  6. Step 6: Final answer
    x = 124,369.56

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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.