Home / 379,266.84-523,403.37-218,121.80

Finding the Fourth Proportional to 379,266.84, 523,403.37 and 218,121.80

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Solution

The fourth proportional to 379,266.84, 523,403.37 and 218,121.80 is: 301,016.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,266.84 : 523,403.37 = 218,121.80 : x
  2. Step 2: Convert to fraction form
    379,266.84/523,403.37 = 218,121.80/x
  3. Step 3: Cross multiply
    379,266.84x = 523,403.37 × 218,121.80
  4. Step 4: Simplify right side
    379,266.84x = 114,165,682,573.45
  5. Step 5: Solve for x
    x = 114,165,682,573.45/379,266.84
  6. Step 6: Final answer
    x = 301,016.78

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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.