Home / 213,733.87-319,022.32-188,519.65

Finding the Fourth Proportional to 213,733.87, 319,022.32 and 188,519.65

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Solution

The fourth proportional to 213,733.87, 319,022.32 and 188,519.65 is: 281,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,733.87 : 319,022.32 = 188,519.65 : x
  2. Step 2: Convert to fraction form
    213,733.87/319,022.32 = 188,519.65/x
  3. Step 3: Cross multiply
    213,733.87x = 319,022.32 × 188,519.65
  4. Step 4: Simplify right side
    213,733.87x = 60,141,976,108.59
  5. Step 5: Solve for x
    x = 60,141,976,108.59/213,733.87
  6. Step 6: Final answer
    x = 281,387.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.