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Finding the Fourth Proportional to 328,205.86, 492,265.05 and 91,528.72

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Solution

The fourth proportional to 328,205.86, 492,265.05 and 91,528.72 is: 137,280.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,205.86 : 492,265.05 = 91,528.72 : x
  2. Step 2: Convert to fraction form
    328,205.86/492,265.05 = 91,528.72/x
  3. Step 3: Cross multiply
    328,205.86x = 492,265.05 × 91,528.72
  4. Step 4: Simplify right side
    328,205.86x = 45,056,389,927.24
  5. Step 5: Solve for x
    x = 45,056,389,927.24/328,205.86
  6. Step 6: Final answer
    x = 137,280.88

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