Home / 208,329.39-312,501.78-107,100.33

Finding the Fourth Proportional to 208,329.39, 312,501.78 and 107,100.33

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Solution

The fourth proportional to 208,329.39, 312,501.78 and 107,100.33 is: 160,654.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,329.39 : 312,501.78 = 107,100.33 : x
  2. Step 2: Convert to fraction form
    208,329.39/312,501.78 = 107,100.33/x
  3. Step 3: Cross multiply
    208,329.39x = 312,501.78 × 107,100.33
  4. Step 4: Simplify right side
    208,329.39x = 33,469,043,763.59
  5. Step 5: Solve for x
    x = 33,469,043,763.59/208,329.39
  6. Step 6: Final answer
    x = 160,654.45

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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.