Home / 278,067.48-417,072.52-188,684.11

Finding the Fourth Proportional to 278,067.48, 417,072.52 and 188,684.11

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Solution

The fourth proportional to 278,067.48, 417,072.52 and 188,684.11 is: 283,006.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,067.48 : 417,072.52 = 188,684.11 : x
  2. Step 2: Convert to fraction form
    278,067.48/417,072.52 = 188,684.11/x
  3. Step 3: Cross multiply
    278,067.48x = 417,072.52 × 188,684.11
  4. Step 4: Simplify right side
    278,067.48x = 78,694,956,295.16
  5. Step 5: Solve for x
    x = 78,694,956,295.16/278,067.48
  6. Step 6: Final answer
    x = 283,006.69

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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.