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Finding the Fourth Proportional to 413.16, 619.62 and 269.64

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Solution

The fourth proportional to 413.16, 619.62 and 269.64 is: 404.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    413.16 : 619.62 = 269.64 : x
  2. Step 2: Convert to fraction form
    413.16/619.62 = 269.64/x
  3. Step 3: Cross multiply
    413.16x = 619.62 × 269.64
  4. Step 4: Simplify right side
    413.16x = 167,074.34
  5. Step 5: Solve for x
    x = 167,074.34/413.16
  6. Step 6: Final answer
    x = 404.38

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