Home / 331,207.80-496,568.70-131,429.40

Finding the Fourth Proportional to 331,207.80, 496,568.70 and 131,429.40

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Solution

The fourth proportional to 331,207.80, 496,568.70 and 131,429.40 is: 197,047.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,207.80 : 496,568.70 = 131,429.40 : x
  2. Step 2: Convert to fraction form
    331,207.80/496,568.70 = 131,429.40/x
  3. Step 3: Cross multiply
    331,207.80x = 496,568.70 × 131,429.40
  4. Step 4: Simplify right side
    331,207.80x = 65,263,726,299.78
  5. Step 5: Solve for x
    x = 65,263,726,299.78/331,207.80
  6. Step 6: Final answer
    x = 197,047.67

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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.