Home / 486,043.57-729,183.67-161,830.81

Finding the Fourth Proportional to 486,043.57, 729,183.67 and 161,830.81

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Solution

The fourth proportional to 486,043.57, 729,183.67 and 161,830.81 is: 242,785.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,043.57 : 729,183.67 = 161,830.81 : x
  2. Step 2: Convert to fraction form
    486,043.57/729,183.67 = 161,830.81/x
  3. Step 3: Cross multiply
    486,043.57x = 729,183.67 × 161,830.81
  4. Step 4: Simplify right side
    486,043.57x = 118,004,383,954.87
  5. Step 5: Solve for x
    x = 118,004,383,954.87/486,043.57
  6. Step 6: Final answer
    x = 242,785.61

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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.