Home / 382,763.37-528,179.07-221,629.32

Finding the Fourth Proportional to 382,763.37, 528,179.07 and 221,629.32

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Solution

The fourth proportional to 382,763.37, 528,179.07 and 221,629.32 is: 305,828.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,763.37 : 528,179.07 = 221,629.32 : x
  2. Step 2: Convert to fraction form
    382,763.37/528,179.07 = 221,629.32/x
  3. Step 3: Cross multiply
    382,763.37x = 528,179.07 × 221,629.32
  4. Step 4: Simplify right side
    382,763.37x = 117,059,968,122.33
  5. Step 5: Solve for x
    x = 117,059,968,122.33/382,763.37
  6. Step 6: Final answer
    x = 305,828.55

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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.