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Finding the Fourth Proportional to 297,110.88, 445,802.40 and 128,682.72

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Solution

The fourth proportional to 297,110.88, 445,802.40 and 128,682.72 is: 193,083.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,110.88 : 445,802.40 = 128,682.72 : x
  2. Step 2: Convert to fraction form
    297,110.88/445,802.40 = 128,682.72/x
  3. Step 3: Cross multiply
    297,110.88x = 445,802.40 × 128,682.72
  4. Step 4: Simplify right side
    297,110.88x = 57,367,065,414.53
  5. Step 5: Solve for x
    x = 57,367,065,414.53/297,110.88
  6. Step 6: Final answer
    x = 193,083.02

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