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Finding the Fourth Proportional to 382,940.06, 528,528.14 and 221,795.06

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Solution

The fourth proportional to 382,940.06, 528,528.14 and 221,795.06 is: 306,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,940.06 : 528,528.14 = 221,795.06 : x
  2. Step 2: Convert to fraction form
    382,940.06/528,528.14 = 221,795.06/x
  3. Step 3: Cross multiply
    382,940.06x = 528,528.14 × 221,795.06
  4. Step 4: Simplify right side
    382,940.06x = 117,224,930,522.99
  5. Step 5: Solve for x
    x = 117,224,930,522.99/382,940.06
  6. Step 6: Final answer
    x = 306,118.22

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