I assume you only want to find the first instance?
Code:
Sub ShowPARA()
Dim p As Paragraph, pp As String
Dim pp2 As String
For Each p In ActiveDocument.Paragraphs
pp = p.Range.Text
If Not p.Range.End = ActiveDocument.Range.End Then
pp2 = p.Range.Next.Paragraphs(1).Range.Text
Else: pp2 = ""
End If
If Val(pp) > 279 Then
Debug.Print pp & pp2 & vbCr
Exit For 'stop processing the loop
End If
Next p
End Sub