Home / 305,519.11-458,169.31-105,785.87

Finding the Fourth Proportional to 305,519.11, 458,169.31 and 105,785.87

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Solution

The fourth proportional to 305,519.11, 458,169.31 and 105,785.87 is: 158,640.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,519.11 : 458,169.31 = 105,785.87 : x
  2. Step 2: Convert to fraction form
    305,519.11/458,169.31 = 105,785.87/x
  3. Step 3: Cross multiply
    305,519.11x = 458,169.31 × 105,785.87
  4. Step 4: Simplify right side
    305,519.11x = 48,467,836,907.04
  5. Step 5: Solve for x
    x = 48,467,836,907.04/305,519.11
  6. Step 6: Final answer
    x = 158,640.94

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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.