Home / 278,710.20-418,259.70-179,112.60

Finding the Fourth Proportional to 278,710.20, 418,259.70 and 179,112.60

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Solution

The fourth proportional to 278,710.20, 418,259.70 and 179,112.60 is: 268,793.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,710.20 : 418,259.70 = 179,112.60 : x
  2. Step 2: Convert to fraction form
    278,710.20/418,259.70 = 179,112.60/x
  3. Step 3: Cross multiply
    278,710.20x = 418,259.70 × 179,112.60
  4. Step 4: Simplify right side
    278,710.20x = 74,915,582,342.22
  5. Step 5: Solve for x
    x = 74,915,582,342.22/278,710.20
  6. Step 6: Final answer
    x = 268,793.83

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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.