Home / 217,604.25-300,286.74-122,112.54

Finding the Fourth Proportional to 217,604.25, 300,286.74 and 122,112.54

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Solution

The fourth proportional to 217,604.25, 300,286.74 and 122,112.54 is: 168,511.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,604.25 : 300,286.74 = 122,112.54 : x
  2. Step 2: Convert to fraction form
    217,604.25/300,286.74 = 122,112.54/x
  3. Step 3: Cross multiply
    217,604.25x = 300,286.74 × 122,112.54
  4. Step 4: Simplify right side
    217,604.25x = 36,668,776,549.72
  5. Step 5: Solve for x
    x = 36,668,776,549.72/217,604.25
  6. Step 6: Final answer
    x = 168,511.31

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1.5x scale

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.