Home / 379,745.09-524,180.19-218,664.34

Finding the Fourth Proportional to 379,745.09, 524,180.19 and 218,664.34

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Solution

The fourth proportional to 379,745.09, 524,180.19 and 218,664.34 is: 301,832.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,745.09 : 524,180.19 = 218,664.34 : x
  2. Step 2: Convert to fraction form
    379,745.09/524,180.19 = 218,664.34/x
  3. Step 3: Cross multiply
    379,745.09x = 524,180.19 × 218,664.34
  4. Step 4: Simplify right side
    379,745.09x = 114,619,515,287.43
  5. Step 5: Solve for x
    x = 114,619,515,287.43/379,745.09
  6. Step 6: Final answer
    x = 301,832.78

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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.