Home / 319,839.40-441,193.34-206,662.15

Finding the Fourth Proportional to 319,839.40, 441,193.34 and 206,662.15

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Solution

The fourth proportional to 319,839.40, 441,193.34 and 206,662.15 is: 285,074.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,839.40 : 441,193.34 = 206,662.15 : x
  2. Step 2: Convert to fraction form
    319,839.40/441,193.34 = 206,662.15/x
  3. Step 3: Cross multiply
    319,839.40x = 441,193.34 × 206,662.15
  4. Step 4: Simplify right side
    319,839.40x = 91,177,964,210.08
  5. Step 5: Solve for x
    x = 91,177,964,210.08/319,839.40
  6. Step 6: Final answer
    x = 285,074.21

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1.5x scale

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.