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Finding the Fourth Proportional to 290,876.16, 436,323.76 and 80,496.48

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Solution

The fourth proportional to 290,876.16, 436,323.76 and 80,496.48 is: 120,747.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,876.16 : 436,323.76 = 80,496.48 : x
  2. Step 2: Convert to fraction form
    290,876.16/436,323.76 = 80,496.48/x
  3. Step 3: Cross multiply
    290,876.16x = 436,323.76 × 80,496.48
  4. Step 4: Simplify right side
    290,876.16x = 35,122,526,820.36
  5. Step 5: Solve for x
    x = 35,122,526,820.36/290,876.16
  6. Step 6: Final answer
    x = 120,747.35

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