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Finding the Fourth Proportional to 201,724.40, 302,586.60 and 138,738.80

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Solution

The fourth proportional to 201,724.40, 302,586.60 and 138,738.80 is: 208,108.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,724.40 : 302,586.60 = 138,738.80 : x
  2. Step 2: Convert to fraction form
    201,724.40/302,586.60 = 138,738.80/x
  3. Step 3: Cross multiply
    201,724.40x = 302,586.60 × 138,738.80
  4. Step 4: Simplify right side
    201,724.40x = 41,980,501,780.08
  5. Step 5: Solve for x
    x = 41,980,501,780.08/201,724.40
  6. Step 6: Final answer
    x = 208,108.20

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