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Finding the Fourth Proportional to 462.63, 693.96 and 219.18

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Solution

The fourth proportional to 462.63, 693.96 and 219.18 is: 328.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.63 : 693.96 = 219.18 : x
  2. Step 2: Convert to fraction form
    462.63/693.96 = 219.18/x
  3. Step 3: Cross multiply
    462.63x = 693.96 × 219.18
  4. Step 4: Simplify right side
    462.63x = 152,101.06
  5. Step 5: Solve for x
    x = 152,101.06/462.63
  6. Step 6: Final answer
    x = 328.77

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