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Finding the Fourth Proportional to 383,993.66, 574,874.97 and 223,580.25

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Solution

The fourth proportional to 383,993.66, 574,874.97 and 223,580.25 is: 334,720.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,993.66 : 574,874.97 = 223,580.25 : x
  2. Step 2: Convert to fraction form
    383,993.66/574,874.97 = 223,580.25/x
  3. Step 3: Cross multiply
    383,993.66x = 574,874.97 × 223,580.25
  4. Step 4: Simplify right side
    383,993.66x = 128,530,686,517.14
  5. Step 5: Solve for x
    x = 128,530,686,517.14/383,993.66
  6. Step 6: Final answer
    x = 334,720.86

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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.