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Finding the Fourth Proportional to 326,619.90, 489,987.18 and 149,144.85

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Solution

The fourth proportional to 326,619.90, 489,987.18 and 149,144.85 is: 223,743.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,619.90 : 489,987.18 = 149,144.85 : x
  2. Step 2: Convert to fraction form
    326,619.90/489,987.18 = 149,144.85/x
  3. Step 3: Cross multiply
    326,619.90x = 489,987.18 × 149,144.85
  4. Step 4: Simplify right side
    326,619.90x = 73,079,064,463.02
  5. Step 5: Solve for x
    x = 73,079,064,463.02/326,619.90
  6. Step 6: Final answer
    x = 223,743.45

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