Home / 278,305.05-417,197.86-109,826.77

Finding the Fourth Proportional to 278,305.05, 417,197.86 and 109,826.77

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Solution

The fourth proportional to 278,305.05, 417,197.86 and 109,826.77 is: 164,637.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,305.05 : 417,197.86 = 109,826.77 : x
  2. Step 2: Convert to fraction form
    278,305.05/417,197.86 = 109,826.77/x
  3. Step 3: Cross multiply
    278,305.05x = 417,197.86 × 109,826.77
  4. Step 4: Simplify right side
    278,305.05x = 45,819,493,414.71
  5. Step 5: Solve for x
    x = 45,819,493,414.71/278,305.05
  6. Step 6: Final answer
    x = 164,637.66

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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.