Home / 379,112.92-523,175.70-217,999.60

Finding the Fourth Proportional to 379,112.92, 523,175.70 and 217,999.60

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Solution

The fourth proportional to 379,112.92, 523,175.70 and 217,999.60 is: 300,839.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,112.92 : 523,175.70 = 217,999.60 : x
  2. Step 2: Convert to fraction form
    379,112.92/523,175.70 = 217,999.60/x
  3. Step 3: Cross multiply
    379,112.92x = 523,175.70 × 217,999.60
  4. Step 4: Simplify right side
    379,112.92x = 114,052,093,329.72
  5. Step 5: Solve for x
    x = 114,052,093,329.72/379,112.92
  6. Step 6: Final answer
    x = 300,839.37

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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.