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Finding the Fourth Proportional to 330,009.28, 455,423.76 and 186,767.68

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Solution

The fourth proportional to 330,009.28, 455,423.76 and 186,767.68 is: 257,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,009.28 : 455,423.76 = 186,767.68 : x
  2. Step 2: Convert to fraction form
    330,009.28/455,423.76 = 186,767.68/x
  3. Step 3: Cross multiply
    330,009.28x = 455,423.76 × 186,767.68
  4. Step 4: Simplify right side
    330,009.28x = 85,058,439,072.08
  5. Step 5: Solve for x
    x = 85,058,439,072.08/330,009.28
  6. Step 6: Final answer
    x = 257,745.60

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