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Finding the Fourth Proportional to 306, 456.30 and 283.68

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Solution

The fourth proportional to 306, 456.30 and 283.68 is: 423.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    306 : 456.30 = 283.68 : x
  2. Step 2: Convert to fraction form
    306/456.30 = 283.68/x
  3. Step 3: Cross multiply
    306x = 456.30 × 283.68
  4. Step 4: Simplify right side
    306x = 129,443.18
  5. Step 5: Solve for x
    x = 129,443.18/306
  6. Step 6: Final answer
    x = 423.02

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