Home / 217,640.62-300,373.37-122,152.54

Finding the Fourth Proportional to 217,640.62, 300,373.37 and 122,152.54

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Solution

The fourth proportional to 217,640.62, 300,373.37 and 122,152.54 is: 168,586.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,640.62 : 300,373.37 = 122,152.54 : x
  2. Step 2: Convert to fraction form
    217,640.62/300,373.37 = 122,152.54/x
  3. Step 3: Cross multiply
    217,640.62x = 300,373.37 × 122,152.54
  4. Step 4: Simplify right side
    217,640.62x = 36,691,370,093.86
  5. Step 5: Solve for x
    x = 36,691,370,093.86/217,640.62
  6. Step 6: Final answer
    x = 168,586.96

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Why These Related Problems?

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