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Finding the Fourth Proportional to 306,281.45, 422,606.46 and 178,932.44

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Solution

The fourth proportional to 306,281.45, 422,606.46 and 178,932.44 is: 246,890.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,281.45 : 422,606.46 = 178,932.44 : x
  2. Step 2: Convert to fraction form
    306,281.45/422,606.46 = 178,932.44/x
  3. Step 3: Cross multiply
    306,281.45x = 422,606.46 × 178,932.44
  4. Step 4: Simplify right side
    306,281.45x = 75,618,006,775.08
  5. Step 5: Solve for x
    x = 75,618,006,775.08/306,281.45
  6. Step 6: Final answer
    x = 246,890.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.