Home / 278,826.14-418,004.10-120,935.68

Finding the Fourth Proportional to 278,826.14, 418,004.10 and 120,935.68

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Solution

The fourth proportional to 278,826.14, 418,004.10 and 120,935.68 is: 181,301.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,826.14 : 418,004.10 = 120,935.68 : x
  2. Step 2: Convert to fraction form
    278,826.14/418,004.10 = 120,935.68/x
  3. Step 3: Cross multiply
    278,826.14x = 418,004.10 × 120,935.68
  4. Step 4: Simplify right side
    278,826.14x = 50,551,610,076.29
  5. Step 5: Solve for x
    x = 50,551,610,076.29/278,826.14
  6. Step 6: Final answer
    x = 181,301.55

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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.