Home / 379,717.86-524,042.38-218,625.06

Finding the Fourth Proportional to 379,717.86, 524,042.38 and 218,625.06

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Solution

The fourth proportional to 379,717.86, 524,042.38 and 218,625.06 is: 301,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,717.86 : 524,042.38 = 218,625.06 : x
  2. Step 2: Convert to fraction form
    379,717.86/524,042.38 = 218,625.06/x
  3. Step 3: Cross multiply
    379,717.86x = 524,042.38 × 218,625.06
  4. Step 4: Simplify right side
    379,717.86x = 114,568,796,770.04
  5. Step 5: Solve for x
    x = 114,568,796,770.04/379,717.86
  6. Step 6: Final answer
    x = 301,720.85

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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.