Home / 386,786.52-580,183.78-116,916.90

Finding the Fourth Proportional to 386,786.52, 580,183.78 and 116,916.90

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Solution

The fourth proportional to 386,786.52, 580,183.78 and 116,916.90 is: 175,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,786.52 : 580,183.78 = 116,916.90 : x
  2. Step 2: Convert to fraction form
    386,786.52/580,183.78 = 116,916.90/x
  3. Step 3: Cross multiply
    386,786.52x = 580,183.78 × 116,916.90
  4. Step 4: Simplify right side
    386,786.52x = 67,833,285,502.38
  5. Step 5: Solve for x
    x = 67,833,285,502.38/386,786.52
  6. Step 6: Final answer
    x = 175,376.55

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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.