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Finding the Fourth Proportional to 419.68, 628.96 and 237

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Solution

The fourth proportional to 419.68, 628.96 and 237 is: 355.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    419.68 : 628.96 = 237 : x
  2. Step 2: Convert to fraction form
    419.68/628.96 = 237/x
  3. Step 3: Cross multiply
    419.68x = 628.96 × 237
  4. Step 4: Simplify right side
    419.68x = 149,063.52
  5. Step 5: Solve for x
    x = 149,063.52/419.68
  6. Step 6: Final answer
    x = 355.18

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