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Finding the Fourth Proportional to 290,418.18, 435,558.15 and 80,073.06

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Solution

The fourth proportional to 290,418.18, 435,558.15 and 80,073.06 is: 120,090.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,418.18 : 435,558.15 = 80,073.06 : x
  2. Step 2: Convert to fraction form
    290,418.18/435,558.15 = 80,073.06/x
  3. Step 3: Cross multiply
    290,418.18x = 435,558.15 × 80,073.06
  4. Step 4: Simplify right side
    290,418.18x = 34,876,473,878.44
  5. Step 5: Solve for x
    x = 34,876,473,878.44/290,418.18
  6. Step 6: Final answer
    x = 120,090.53

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