Home / 278,722.56-417,685.32-222,732.96

Finding the Fourth Proportional to 278,722.56, 417,685.32 and 222,732.96

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Solution

The fourth proportional to 278,722.56, 417,685.32 and 222,732.96 is: 333,780.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,722.56 : 417,685.32 = 222,732.96 : x
  2. Step 2: Convert to fraction form
    278,722.56/417,685.32 = 222,732.96/x
  3. Step 3: Cross multiply
    278,722.56x = 417,685.32 × 222,732.96
  4. Step 4: Simplify right side
    278,722.56x = 93,032,287,672.15
  5. Step 5: Solve for x
    x = 93,032,287,672.15/278,722.56
  6. Step 6: Final answer
    x = 333,780.97

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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.