Home / 318,823.20-477,709.88-222,770.16

Finding the Fourth Proportional to 318,823.20, 477,709.88 and 222,770.16

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Solution

The fourth proportional to 318,823.20, 477,709.88 and 222,770.16 is: 333,788.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,823.20 : 477,709.88 = 222,770.16 : x
  2. Step 2: Convert to fraction form
    318,823.20/477,709.88 = 222,770.16/x
  3. Step 3: Cross multiply
    318,823.20x = 477,709.88 × 222,770.16
  4. Step 4: Simplify right side
    318,823.20x = 106,419,505,287.33
  5. Step 5: Solve for x
    x = 106,419,505,287.33/318,823.20
  6. Step 6: Final answer
    x = 333,788.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.