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Finding the Fourth Proportional to 308,480.34, 462,485.94 and 213,457.92

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Solution

The fourth proportional to 308,480.34, 462,485.94 and 213,457.92 is: 320,024.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,480.34 : 462,485.94 = 213,457.92 : x
  2. Step 2: Convert to fraction form
    308,480.34/462,485.94 = 213,457.92/x
  3. Step 3: Cross multiply
    308,480.34x = 462,485.94 × 213,457.92
  4. Step 4: Simplify right side
    308,480.34x = 98,721,286,781.64
  5. Step 5: Solve for x
    x = 98,721,286,781.64/308,480.34
  6. Step 6: Final answer
    x = 320,024.57

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