Home / 263,990.31-363,954.19-209,722.54

Finding the Fourth Proportional to 263,990.31, 363,954.19 and 209,722.54

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Solution

The fourth proportional to 263,990.31, 363,954.19 and 209,722.54 is: 289,137.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,990.31 : 363,954.19 = 209,722.54 : x
  2. Step 2: Convert to fraction form
    263,990.31/363,954.19 = 209,722.54/x
  3. Step 3: Cross multiply
    263,990.31x = 363,954.19 × 209,722.54
  4. Step 4: Simplify right side
    263,990.31x = 76,329,397,170.44
  5. Step 5: Solve for x
    x = 76,329,397,170.44/263,990.31
  6. Step 6: Final answer
    x = 289,137.12

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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.