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Finding the Fourth Proportional to 435.88, 653.01 and 219.61

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Solution

The fourth proportional to 435.88, 653.01 and 219.61 is: 329.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.88 : 653.01 = 219.61 : x
  2. Step 2: Convert to fraction form
    435.88/653.01 = 219.61/x
  3. Step 3: Cross multiply
    435.88x = 653.01 × 219.61
  4. Step 4: Simplify right side
    435.88x = 143,407.53
  5. Step 5: Solve for x
    x = 143,407.53/435.88
  6. Step 6: Final answer
    x = 329.01

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