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Finding the Fourth Proportional to 290,528.11, 435,817.26 and 80,166.04

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Solution

The fourth proportional to 290,528.11, 435,817.26 and 80,166.04 is: 120,255.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,528.11 : 435,817.26 = 80,166.04 : x
  2. Step 2: Convert to fraction form
    290,528.11/435,817.26 = 80,166.04/x
  3. Step 3: Cross multiply
    290,528.11x = 435,817.26 × 80,166.04
  4. Step 4: Simplify right side
    290,528.11x = 34,937,743,897.85
  5. Step 5: Solve for x
    x = 34,937,743,897.85/290,528.11
  6. Step 6: Final answer
    x = 120,255.98

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