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Finding the Fourth Proportional to 484.61, 668.75 and 274.74

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Solution

The fourth proportional to 484.61, 668.75 and 274.74 is: 379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.61 : 668.75 = 274.74 : x
  2. Step 2: Convert to fraction form
    484.61/668.75 = 274.74/x
  3. Step 3: Cross multiply
    484.61x = 668.75 × 274.74
  4. Step 4: Simplify right side
    484.61x = 183,731.00
  5. Step 5: Solve for x
    x = 183,731.00/484.61
  6. Step 6: Final answer
    x = 379.14

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