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Finding the Fourth Proportional to 429,201.88, 643,917.64 and 148,719.12

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Solution

The fourth proportional to 429,201.88, 643,917.64 and 148,719.12 is: 223,118.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,201.88 : 643,917.64 = 148,719.12 : x
  2. Step 2: Convert to fraction form
    429,201.88/643,917.64 = 148,719.12/x
  3. Step 3: Cross multiply
    429,201.88x = 643,917.64 × 148,719.12
  4. Step 4: Simplify right side
    429,201.88x = 95,762,864,773.28
  5. Step 5: Solve for x
    x = 95,762,864,773.28/429,201.88
  6. Step 6: Final answer
    x = 223,118.47

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