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Finding the Fourth Proportional to 231,028.48, 318,722.88 and 155,445.76

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Solution

The fourth proportional to 231,028.48, 318,722.88 and 155,445.76 is: 214,450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,028.48 : 318,722.88 = 155,445.76 : x
  2. Step 2: Convert to fraction form
    231,028.48/318,722.88 = 155,445.76/x
  3. Step 3: Cross multiply
    231,028.48x = 318,722.88 × 155,445.76
  4. Step 4: Simplify right side
    231,028.48x = 49,544,120,310.99
  5. Step 5: Solve for x
    x = 49,544,120,310.99/231,028.48
  6. Step 6: Final answer
    x = 214,450.27

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