Home / 319,351.32-440,711.19-206,370.90

Finding the Fourth Proportional to 319,351.32, 440,711.19 and 206,370.90

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Solution

The fourth proportional to 319,351.32, 440,711.19 and 206,370.90 is: 284,795.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,351.32 : 440,711.19 = 206,370.90 : x
  2. Step 2: Convert to fraction form
    319,351.32/440,711.19 = 206,370.90/x
  3. Step 3: Cross multiply
    319,351.32x = 440,711.19 × 206,370.90
  4. Step 4: Simplify right side
    319,351.32x = 90,949,964,920.37
  5. Step 5: Solve for x
    x = 90,949,964,920.37/319,351.32
  6. Step 6: Final answer
    x = 284,795.96

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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.