Home / 278,633.85-417,946.31-110,155.73

Finding the Fourth Proportional to 278,633.85, 417,946.31 and 110,155.73

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Solution

The fourth proportional to 278,633.85, 417,946.31 and 110,155.73 is: 165,231.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,633.85 : 417,946.31 = 110,155.73 : x
  2. Step 2: Convert to fraction form
    278,633.85/417,946.31 = 110,155.73/x
  3. Step 3: Cross multiply
    278,633.85x = 417,946.31 × 110,155.73
  4. Step 4: Simplify right side
    278,633.85x = 46,039,178,238.35
  5. Step 5: Solve for x
    x = 46,039,178,238.35/278,633.85
  6. Step 6: Final answer
    x = 165,231.82

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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.