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Finding the Fourth Proportional to 448.93, 673.40 and 189.12

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Solution

The fourth proportional to 448.93, 673.40 and 189.12 is: 283.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.93 : 673.40 = 189.12 : x
  2. Step 2: Convert to fraction form
    448.93/673.40 = 189.12/x
  3. Step 3: Cross multiply
    448.93x = 673.40 × 189.12
  4. Step 4: Simplify right side
    448.93x = 127,353.41
  5. Step 5: Solve for x
    x = 127,353.41/448.93
  6. Step 6: Final answer
    x = 283.68

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