Home / 381,022.21-571,795.76-131,704.21

Finding the Fourth Proportional to 381,022.21, 571,795.76 and 131,704.21

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Solution

The fourth proportional to 381,022.21, 571,795.76 and 131,704.21 is: 197,647.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,022.21 : 571,795.76 = 131,704.21 : x
  2. Step 2: Convert to fraction form
    381,022.21/571,795.76 = 131,704.21/x
  3. Step 3: Cross multiply
    381,022.21x = 571,795.76 × 131,704.21
  4. Step 4: Simplify right side
    381,022.21x = 75,307,908,193.63
  5. Step 5: Solve for x
    x = 75,307,908,193.63/381,022.21
  6. Step 6: Final answer
    x = 197,647.03

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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.