Home / 486,313.20-729,506.70-131,322.15

Finding the Fourth Proportional to 486,313.20, 729,506.70 and 131,322.15

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Solution

The fourth proportional to 486,313.20, 729,506.70 and 131,322.15 is: 196,993.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,313.20 : 729,506.70 = 131,322.15 : x
  2. Step 2: Convert to fraction form
    486,313.20/729,506.70 = 131,322.15/x
  3. Step 3: Cross multiply
    486,313.20x = 729,506.70 × 131,322.15
  4. Step 4: Simplify right side
    486,313.20x = 95,800,388,283.41
  5. Step 5: Solve for x
    x = 95,800,388,283.41/486,313.20
  6. Step 6: Final answer
    x = 196,993.19

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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.