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Finding the Fourth Proportional to 453.30, 680.06 and 210

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Solution

The fourth proportional to 453.30, 680.06 and 210 is: 315.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.30 : 680.06 = 210 : x
  2. Step 2: Convert to fraction form
    453.30/680.06 = 210/x
  3. Step 3: Cross multiply
    453.30x = 680.06 × 210
  4. Step 4: Simplify right side
    453.30x = 142,812.60
  5. Step 5: Solve for x
    x = 142,812.60/453.30
  6. Step 6: Final answer
    x = 315.05

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