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Finding the Fourth Proportional to 258,019.56, 387,074.70 and 117,792.36

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Solution

The fourth proportional to 258,019.56, 387,074.70 and 117,792.36 is: 176,709.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,019.56 : 387,074.70 = 117,792.36 : x
  2. Step 2: Convert to fraction form
    258,019.56/387,074.70 = 117,792.36/x
  3. Step 3: Cross multiply
    258,019.56x = 387,074.70 × 117,792.36
  4. Step 4: Simplify right side
    258,019.56x = 45,594,442,409.29
  5. Step 5: Solve for x
    x = 45,594,442,409.29/258,019.56
  6. Step 6: Final answer
    x = 176,709.25

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