Home / 278,133.38-417,216.20-107,356.07

Finding the Fourth Proportional to 278,133.38, 417,216.20 and 107,356.07

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Solution

The fourth proportional to 278,133.38, 417,216.20 and 107,356.07 is: 161,040.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,133.38 : 417,216.20 = 107,356.07 : x
  2. Step 2: Convert to fraction form
    278,133.38/417,216.20 = 107,356.07/x
  3. Step 3: Cross multiply
    278,133.38x = 417,216.20 × 107,356.07
  4. Step 4: Simplify right side
    278,133.38x = 44,790,689,754.64
  5. Step 5: Solve for x
    x = 44,790,689,754.64/278,133.38
  6. Step 6: Final answer
    x = 161,040.33

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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.