Home / 208,336.39-312,512.28-107,107.33

Finding the Fourth Proportional to 208,336.39, 312,512.28 and 107,107.33

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Solution

The fourth proportional to 208,336.39, 312,512.28 and 107,107.33 is: 160,664.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,336.39 : 312,512.28 = 107,107.33 : x
  2. Step 2: Convert to fraction form
    208,336.39/312,512.28 = 107,107.33/x
  3. Step 3: Cross multiply
    208,336.39x = 312,512.28 × 107,107.33
  4. Step 4: Simplify right side
    208,336.39x = 33,472,355,903.01
  5. Step 5: Solve for x
    x = 33,472,355,903.01/208,336.39
  6. Step 6: Final answer
    x = 160,664.95

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1.5x scale

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.