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Finding the Fourth Proportional to 305,263.48, 421,264.84 and 169,310.12

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Solution

The fourth proportional to 305,263.48, 421,264.84 and 169,310.12 is: 233,648.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,263.48 : 421,264.84 = 169,310.12 : x
  2. Step 2: Convert to fraction form
    305,263.48/421,264.84 = 169,310.12/x
  3. Step 3: Cross multiply
    305,263.48x = 421,264.84 × 169,310.12
  4. Step 4: Simplify right side
    305,263.48x = 71,324,400,612.18
  5. Step 5: Solve for x
    x = 71,324,400,612.18/305,263.48
  6. Step 6: Final answer
    x = 233,648.65

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