Home / 311,623.48-430,766.86-277,965.54

Finding the Fourth Proportional to 311,623.48, 430,766.86 and 277,965.54

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Solution

The fourth proportional to 311,623.48, 430,766.86 and 277,965.54 is: 384,240.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,623.48 : 430,766.86 = 277,965.54 : x
  2. Step 2: Convert to fraction form
    311,623.48/430,766.86 = 277,965.54/x
  3. Step 3: Cross multiply
    311,623.48x = 430,766.86 × 277,965.54
  4. Step 4: Simplify right side
    311,623.48x = 119,738,342,854.00
  5. Step 5: Solve for x
    x = 119,738,342,854.00/311,623.48
  6. Step 6: Final answer
    x = 384,240.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.