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Finding the Fourth Proportional to 306,661.35, 423,183.24 and 170,691.81

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Solution

The fourth proportional to 306,661.35, 423,183.24 and 170,691.81 is: 235,549.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,661.35 : 423,183.24 = 170,691.81 : x
  2. Step 2: Convert to fraction form
    306,661.35/423,183.24 = 170,691.81/x
  3. Step 3: Cross multiply
    306,661.35x = 423,183.24 × 170,691.81
  4. Step 4: Simplify right side
    306,661.35x = 72,233,912,090.40
  5. Step 5: Solve for x
    x = 72,233,912,090.40/306,661.35
  6. Step 6: Final answer
    x = 235,549.45

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