Home / 278,134.56-417,219.47-107,437.70

Finding the Fourth Proportional to 278,134.56, 417,219.47 and 107,437.70

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Solution

The fourth proportional to 278,134.56, 417,219.47 and 107,437.70 is: 161,163.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,134.56 : 417,219.47 = 107,437.70 : x
  2. Step 2: Convert to fraction form
    278,134.56/417,219.47 = 107,437.70/x
  3. Step 3: Cross multiply
    278,134.56x = 417,219.47 × 107,437.70
  4. Step 4: Simplify right side
    278,134.56x = 44,825,100,252.02
  5. Step 5: Solve for x
    x = 44,825,100,252.02/278,134.56
  6. Step 6: Final answer
    x = 161,163.36

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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.