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Finding the Fourth Proportional to 297,978, 447,247.89 and 108,621.38

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Solution

The fourth proportional to 297,978, 447,247.89 and 108,621.38 is: 163,034.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,978 : 447,247.89 = 108,621.38 : x
  2. Step 2: Convert to fraction form
    297,978/447,247.89 = 108,621.38/x
  3. Step 3: Cross multiply
    297,978x = 447,247.89 × 108,621.38
  4. Step 4: Simplify right side
    297,978x = 48,580,680,777.65
  5. Step 5: Solve for x
    x = 48,580,680,777.65/297,978
  6. Step 6: Final answer
    x = 163,034.45

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