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Finding the Fourth Proportional to 355,066.80, 532,600.20 and 316,359.60

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Solution

The fourth proportional to 355,066.80, 532,600.20 and 316,359.60 is: 474,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,066.80 : 532,600.20 = 316,359.60 : x
  2. Step 2: Convert to fraction form
    355,066.80/532,600.20 = 316,359.60/x
  3. Step 3: Cross multiply
    355,066.80x = 532,600.20 × 316,359.60
  4. Step 4: Simplify right side
    355,066.80x = 168,493,186,231.92
  5. Step 5: Solve for x
    x = 168,493,186,231.92/355,066.80
  6. Step 6: Final answer
    x = 474,539.40

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