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Finding the Fourth Proportional to 219,611.02, 328,788.94 and 205,660.78

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Solution

The fourth proportional to 219,611.02, 328,788.94 and 205,660.78 is: 307,903.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,611.02 : 328,788.94 = 205,660.78 : x
  2. Step 2: Convert to fraction form
    219,611.02/328,788.94 = 205,660.78/x
  3. Step 3: Cross multiply
    219,611.02x = 328,788.94 × 205,660.78
  4. Step 4: Simplify right side
    219,611.02x = 67,618,989,855.77
  5. Step 5: Solve for x
    x = 67,618,989,855.77/219,611.02
  6. Step 6: Final answer
    x = 307,903.45

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