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Finding the Fourth Proportional to 291,191.20, 436,848.90 and 164,890.60

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Solution

The fourth proportional to 291,191.20, 436,848.90 and 164,890.60 is: 247,371.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,191.20 : 436,848.90 = 164,890.60 : x
  2. Step 2: Convert to fraction form
    291,191.20/436,848.90 = 164,890.60/x
  3. Step 3: Cross multiply
    291,191.20x = 436,848.90 × 164,890.60
  4. Step 4: Simplify right side
    291,191.20x = 72,032,277,230.34
  5. Step 5: Solve for x
    x = 72,032,277,230.34/291,191.20
  6. Step 6: Final answer
    x = 247,371.06

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