Home / 309,828.62-426,766.92-219,028.44

Finding the Fourth Proportional to 309,828.62, 426,766.92 and 219,028.44

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Solution

The fourth proportional to 309,828.62, 426,766.92 and 219,028.44 is: 301,696.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,828.62 : 426,766.92 = 219,028.44 : x
  2. Step 2: Convert to fraction form
    309,828.62/426,766.92 = 219,028.44/x
  3. Step 3: Cross multiply
    309,828.62x = 426,766.92 × 219,028.44
  4. Step 4: Simplify right side
    309,828.62x = 93,474,092,731.20
  5. Step 5: Solve for x
    x = 93,474,092,731.20/309,828.62
  6. Step 6: Final answer
    x = 301,696.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.