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Finding the Fourth Proportional to 260,559.86, 390,922.83 and 116,443.40

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Solution

The fourth proportional to 260,559.86, 390,922.83 and 116,443.40 is: 174,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,559.86 : 390,922.83 = 116,443.40 : x
  2. Step 2: Convert to fraction form
    260,559.86/390,922.83 = 116,443.40/x
  3. Step 3: Cross multiply
    260,559.86x = 390,922.83 × 116,443.40
  4. Step 4: Simplify right side
    260,559.86x = 45,520,382,935.18
  5. Step 5: Solve for x
    x = 45,520,382,935.18/260,559.86
  6. Step 6: Final answer
    x = 174,702.21

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