Home / 379,778.26-524,145.81-218,629.30

Finding the Fourth Proportional to 379,778.26, 524,145.81 and 218,629.30

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Solution

The fourth proportional to 379,778.26, 524,145.81 and 218,629.30 is: 301,738.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,778.26 : 524,145.81 = 218,629.30 : x
  2. Step 2: Convert to fraction form
    379,778.26/524,145.81 = 218,629.30/x
  3. Step 3: Cross multiply
    379,778.26x = 524,145.81 × 218,629.30
  4. Step 4: Simplify right side
    379,778.26x = 114,593,631,538.23
  5. Step 5: Solve for x
    x = 114,593,631,538.23/379,778.26
  6. Step 6: Final answer
    x = 301,738.26

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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.