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Finding the Fourth Proportional to 477.76, 716.56 and 203.84

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Solution

The fourth proportional to 477.76, 716.56 and 203.84 is: 305.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.76 : 716.56 = 203.84 : x
  2. Step 2: Convert to fraction form
    477.76/716.56 = 203.84/x
  3. Step 3: Cross multiply
    477.76x = 716.56 × 203.84
  4. Step 4: Simplify right side
    477.76x = 146,063.59
  5. Step 5: Solve for x
    x = 146,063.59/477.76
  6. Step 6: Final answer
    x = 305.73

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