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Finding the Fourth Proportional to 198,255.40, 297,354.30 and 57,999.40

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Solution

The fourth proportional to 198,255.40, 297,354.30 and 57,999.40 is: 86,990.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,255.40 : 297,354.30 = 57,999.40 : x
  2. Step 2: Convert to fraction form
    198,255.40/297,354.30 = 57,999.40/x
  3. Step 3: Cross multiply
    198,255.40x = 297,354.30 × 57,999.40
  4. Step 4: Simplify right side
    198,255.40x = 17,246,370,987.42
  5. Step 5: Solve for x
    x = 17,246,370,987.42/198,255.40
  6. Step 6: Final answer
    x = 86,990.67

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