Home / 386,977.94-580,633.24-200,120.66

Finding the Fourth Proportional to 386,977.94, 580,633.24 and 200,120.66

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Solution

The fourth proportional to 386,977.94, 580,633.24 and 200,120.66 is: 300,267.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,977.94 : 580,633.24 = 200,120.66 : x
  2. Step 2: Convert to fraction form
    386,977.94/580,633.24 = 200,120.66/x
  3. Step 3: Cross multiply
    386,977.94x = 580,633.24 × 200,120.66
  4. Step 4: Simplify right side
    386,977.94x = 116,196,707,206.74
  5. Step 5: Solve for x
    x = 116,196,707,206.74/386,977.94
  6. Step 6: Final answer
    x = 300,267.01

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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.