Home / 379,100.15-523,247.94-218,048.25

Finding the Fourth Proportional to 379,100.15, 523,247.94 and 218,048.25

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Solution

The fourth proportional to 379,100.15, 523,247.94 and 218,048.25 is: 300,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,100.15 : 523,247.94 = 218,048.25 : x
  2. Step 2: Convert to fraction form
    379,100.15/523,247.94 = 218,048.25/x
  3. Step 3: Cross multiply
    379,100.15x = 523,247.94 × 218,048.25
  4. Step 4: Simplify right side
    379,100.15x = 114,093,297,633.11
  5. Step 5: Solve for x
    x = 114,093,297,633.11/379,100.15
  6. Step 6: Final answer
    x = 300,958.20

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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.