Home / 383,138.33-574,755.20-130,399.40

Finding the Fourth Proportional to 383,138.33, 574,755.20 and 130,399.40

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Solution

The fourth proportional to 383,138.33, 574,755.20 and 130,399.40 is: 195,615.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,138.33 : 574,755.20 = 130,399.40 : x
  2. Step 2: Convert to fraction form
    383,138.33/574,755.20 = 130,399.40/x
  3. Step 3: Cross multiply
    383,138.33x = 574,755.20 × 130,399.40
  4. Step 4: Simplify right side
    383,138.33x = 74,947,729,701.11
  5. Step 5: Solve for x
    x = 74,947,729,701.11/383,138.33
  6. Step 6: Final answer
    x = 195,615.33

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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.