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Finding the Fourth Proportional to 262,478.80, 393,912.60 and 173,702.80

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Solution

The fourth proportional to 262,478.80, 393,912.60 and 173,702.80 is: 260,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,478.80 : 393,912.60 = 173,702.80 : x
  2. Step 2: Convert to fraction form
    262,478.80/393,912.60 = 173,702.80/x
  3. Step 3: Cross multiply
    262,478.80x = 393,912.60 × 173,702.80
  4. Step 4: Simplify right side
    262,478.80x = 68,423,721,575.28
  5. Step 5: Solve for x
    x = 68,423,721,575.28/262,478.80
  6. Step 6: Final answer
    x = 260,682.85

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